Boutique Edition - Chronomètre Souverain
Boutique Edition - Octa Réserve de Marche
Boutique Edition - Octa Automatique Réserve
Boutique Edition - Octa Automatique Lune
BOUTIQUE EDITION - Automatique Lune
BOUTIQUE EDITION - OCTA LUNE
Boutique Edition - Lune
BOUTIQUE EDITION - Octa Divine
Boutique Edition - Divine
Boutique Edition - Octa UTC
Boutique Edition - Octa Calendrier
Boutique Edition - Centigraphe Souverain
Boutique Edition - Quantième Perpétuel
Boutique Edition - Chronomètre Optimum
BOUTIQUE EDITION - CHRONOMÈTRE À RÉSONANCE
Boutique Edition - Chronomètre à Résonance
BOUTIQUE EDITION - CHRONOMÈTRE À RÉSONANCE
BOUTIQUE EDITION - CHRONOMÈTRE À RÉSONANCE
Boutique Edition - Tourbillon Souverain
Chronomètre Souverain Nacre
Octa Automatique Réserve Nacre
Octa Automatique Lune Nacre
Automatique Lune Nacre
Centigraphe Souverain F

Boutique Edition - Octa Automatique Lune Calibre 1300.3 FP Journe FP Journe

18K 6N Gold case
Dial: blackened guilloché Silver
Calibre 1300.3

Technical Specifications

Indications :

    Centre hours and minutes
    Small seconds at 4:30
    Large date
    Power-reserve indicator at 9h00
    Moon phase

Dimensions :
  • Overall diameter : 34.60 mm
  • Casing-up diameter : 30.40 mm
  • Overall height : 5.80 mm
  • Height of winding stem : 3.10 mm
  • Diameter of stem thread : S0.90 mm
  • Case Diameter : 40.00 mm
  • Overall Thickness : 10.6 mm
Characteristics :

    In-line lever escapement, 15-tooth wheel
    Balance with 4 inertia weights
    Flat Anachron microflamed spring
    Mobile stud holder
    Free-sprung balance
    Virolage laser Nivatronic
    Pinned GE stud
    Three-position crown Slipping mainspring
    Off-centre winding rotor

WINDING SPEED :

    on rotator:
    274 clockwise revolutions/24 hours (without mainspring slipping)

Characteristics :

    Uni-directional automatic winding
    Date setting by turning crown in opposite ways (position 2)
    Time setting with crown in position 3
    Instantaneous date change

FREQUENCY :

    21'600 Alt/h, (3Hz)

Balance :

    Inertia: 10.10 mg*cm2
    Angle of lift: 52°

Amplitude :

    12 h dial up : 280°
    90 h dial up : 220°

Autonomy :

    160 ± 10 hours

Number of jewels :

    36

Finish :

    High grade
    Circular stripes on the bridges
    Baseplate partly circular grained
    Polished screw heads with chamfered slots
    Pegs with polished rounded ends
    Steelwork with polished chamfers

Number of parts :

    Movement 271
    Cased up with strap 295

Indications :

    Centre hours and minutes
    Small seconds at 4:30
    Large date
    Power-reserve indicator at 9h00
    Moon phase

Dimensions :
  • Overall diameter : 34.60 mm
  • Casing-up diameter : 30.40 mm
  • Overall height : 5.80 mm
  • Height of winding stem : 3.10 mm
  • Diameter of stem thread : S0.90 mm
  • Case Diameter : 40.00 mm
  • Overall Thickness : 10.6 mm
Characteristics :

    In-line lever escapement, 15-tooth wheel
    Balance with 4 inertia weights
    Flat Anachron microflamed spring
    Mobile stud holder
    Free-sprung balance
    Virolage laser Nivatronic
    Pinned GE stud
    Three-position crown Slipping mainspring
    Off-centre winding rotor

WINDING SPEED :

    on rotator:
    274 clockwise revolutions/24 hours (without mainspring slipping)

Characteristics :

    Uni-directional automatic winding
    Date setting by turning crown in opposite ways (position 2)
    Time setting with crown in position 3
    Instantaneous date change

FREQUENCY :

    21'600 Alt/h, (3Hz)

Balance :

    Inertia: 10.10 mg*cm2
    Angle of lift: 52°

Amplitude :

    12 h dial up : 280°
    90 h dial up : 220°

Autonomy :

    160 ± 10 hours

Number of jewels :

    36

Finish :

    High grade
    Circular stripes on the bridges
    Baseplate partly circular grained
    Polished screw heads with chamfered slots
    Pegs with polished rounded ends
    Steelwork with polished chamfers

Number of parts :

    Movement 271
    Cased up with strap 295


At the heart of the movement
At the heart of the movement
Brevet - EP 1 760 544 A1
fpjourne

Technical description


(1) 22K Gold rotor with uni-directional winding
(2) Large capacity mainspring barrel
(3) Precision-adjustment weights
(4) Full-size free-sprung chronometer balance

Watches with long power reserves have hitherto been handicapped by small balances which are susceptible to shocks and disturbances. The Octa's compact construction allows a large (10.1 mm) balance to be fitted, giving greater inertia and stability. The free-sprung chronometer balance is adjusted by five turning weights that vibrate at a steady 21'600 times an hour.

Fully wound, the Octa delivers chronometric precision for 120 hours. The meter-long mainspring supplies an average 850gr of torque, limiting the loss in balance amplitude to 25% over the five-day period. Beyond that time, the watch will continue to go for another day or two, but the amplitude-loss no longer guarantees precision timekeeping.
Brevet - EP 1 760 544 A1
fpjourne

Technical description


(1) 22K Gold rotor with uni-directional winding
(2) Large capacity mainspring barrel
(3) Precision-adjustment weights
(4) Full-size free-sprung chronometer balance

Watches with long power reserves have hitherto been handicapped by small balances which are susceptible to shocks and disturbances. The Octa's compact construction allows a large (10.1 mm) balance to be fitted, giving greater inertia and stability. The free-sprung chronometer balance is adjusted by five turning weights that vibrate at a steady 21'600 times an hour.

Fully wound, the Octa delivers chronometric precision for 120 hours. The meter-long mainspring supplies an average 850gr of torque, limiting the loss in balance amplitude to 25% over the five-day period. Beyond that time, the watch will continue to go for another day or two, but the amplitude-loss no longer guarantees precision timekeeping.
18K 6N Gold case
Dial: blackened guilloché Silver
Finishing
18K 6N Gold case
Dial: blackened guilloché Silver
Calibre 1300.3

Technical Specifications

Indications :

    Centre hours and minutes
    Small seconds at 4:30
    Large date
    Power-reserve indicator at 9h00
    Moon phase

Dimensions :
  • Overall diameter : 34.60 mm
  • Casing-up diameter : 30.40 mm
  • Overall height : 5.80 mm
  • Height of winding stem : 3.10 mm
  • Diameter of stem thread : S0.90 mm
  • Case Diameter : 40.00 mm
  • Overall Thickness : 10.6 mm
Characteristics :

    In-line lever escapement, 15-tooth wheel
    Balance with 4 inertia weights
    Flat Anachron microflamed spring
    Mobile stud holder
    Free-sprung balance
    Virolage laser Nivatronic
    Pinned GE stud
    Three-position crown Slipping mainspring
    Off-centre winding rotor

WINDING SPEED :

    on rotator:
    274 clockwise revolutions/24 hours (without mainspring slipping)

Characteristics :

    Uni-directional automatic winding
    Date setting by turning crown in opposite ways (position 2)
    Time setting with crown in position 3
    Instantaneous date change

FREQUENCY :

    21'600 Alt/h, (3Hz)

Balance :

    Inertia: 10.10 mg*cm2
    Angle of lift: 52°

Amplitude :

    12 h dial up : 280°
    90 h dial up : 220°

Autonomy :

    160 ± 10 hours

Number of jewels :

    36

Finish :

    High grade
    Circular stripes on the bridges
    Baseplate partly circular grained
    Polished screw heads with chamfered slots
    Pegs with polished rounded ends
    Steelwork with polished chamfers

Number of parts :

    Movement 271
    Cased up with strap 295

Indications :

    Centre hours and minutes
    Small seconds at 4:30
    Large date
    Power-reserve indicator at 9h00
    Moon phase

Dimensions :
  • Overall diameter : 34.60 mm
  • Casing-up diameter : 30.40 mm
  • Overall height : 5.80 mm
  • Height of winding stem : 3.10 mm
  • Diameter of stem thread : S0.90 mm
  • Case Diameter : 40.00 mm
  • Overall Thickness : 10.6 mm
Characteristics :

    In-line lever escapement, 15-tooth wheel
    Balance with 4 inertia weights
    Flat Anachron microflamed spring
    Mobile stud holder
    Free-sprung balance
    Virolage laser Nivatronic
    Pinned GE stud
    Three-position crown Slipping mainspring
    Off-centre winding rotor

WINDING SPEED :

    on rotator:
    274 clockwise revolutions/24 hours (without mainspring slipping)

Characteristics :

    Uni-directional automatic winding
    Date setting by turning crown in opposite ways (position 2)
    Time setting with crown in position 3
    Instantaneous date change

FREQUENCY :

    21'600 Alt/h, (3Hz)

Balance :

    Inertia: 10.10 mg*cm2
    Angle of lift: 52°

Amplitude :

    12 h dial up : 280°
    90 h dial up : 220°

Autonomy :

    160 ± 10 hours

Number of jewels :

    36

Finish :

    High grade
    Circular stripes on the bridges
    Baseplate partly circular grained
    Polished screw heads with chamfered slots
    Pegs with polished rounded ends
    Steelwork with polished chamfers

Number of parts :

    Movement 271
    Cased up with strap 295


At the heart of the movement
At the heart of the movement
Brevet - EP 1 760 544 A1
fpjourne

Technical description


(1) 22K Gold rotor with uni-directional winding
(2) Large capacity mainspring barrel
(3) Precision-adjustment weights
(4) Full-size free-sprung chronometer balance

Watches with long power reserves have hitherto been handicapped by small balances which are susceptible to shocks and disturbances. The Octa's compact construction allows a large (10.1 mm) balance to be fitted, giving greater inertia and stability. The free-sprung chronometer balance is adjusted by five turning weights that vibrate at a steady 21'600 times an hour.

Fully wound, the Octa delivers chronometric precision for 120 hours. The meter-long mainspring supplies an average 850gr of torque, limiting the loss in balance amplitude to 25% over the five-day period. Beyond that time, the watch will continue to go for another day or two, but the amplitude-loss no longer guarantees precision timekeeping.
Brevet - EP 1 760 544 A1
fpjourne

Technical description


(1) 22K Gold rotor with uni-directional winding
(2) Large capacity mainspring barrel
(3) Precision-adjustment weights
(4) Full-size free-sprung chronometer balance

Watches with long power reserves have hitherto been handicapped by small balances which are susceptible to shocks and disturbances. The Octa's compact construction allows a large (10.1 mm) balance to be fitted, giving greater inertia and stability. The free-sprung chronometer balance is adjusted by five turning weights that vibrate at a steady 21'600 times an hour.

Fully wound, the Octa delivers chronometric precision for 120 hours. The meter-long mainspring supplies an average 850gr of torque, limiting the loss in balance amplitude to 25% over the five-day period. Beyond that time, the watch will continue to go for another day or two, but the amplitude-loss no longer guarantees precision timekeeping.

Boutique Edition - Octa Automatique Lune Calibre 1300.3 FP Journe FP Journe

Other views
F.P.Journe

About

THIS MODEL WAS PRODUCED BETWEEN 2009 AND 2018.

THE BOUTIQUE EDITION WITH BLACK DIAL ON 18K 6N GOLD CASE WAS AVAILABLE ONLY IN THE F.P.JOURNE BOUTIQUES AND ESPACES AND FOR ALL F.P.JOURNE MODELS, APART FROM THE STRIKING WATCHES.
Testimony
Calibre OCTA

A horological ideal

“The construction of the Octa calibre has less powerful ties with horological history than do the constant-force device or resonance models, but it symbolises an horological ideal of giving timekeepers the highest possible degree of precision and autonomy!

One can indeed note the fact that if church clocks are placed so high, in addition to enhancing visibility, it was mostly because it often took an entire month for the driving-weights to drop the length of their cords. Numerous systems were invented to increase the operating duration of timekeeping devices, meeting with various degrees of success. Given the small volume of a wristwatch, the size of the mainspring was automatically limited. Watchmakers therefore discovered the trick of adding an extra wheel to the customary geartrain in order to extend the duration of its development. Unfortunately, actually using this system, even with a stronger spring, led them to observe that the level of energy actually reaching the balance remained low. To compensate for this, they fitted a smaller balance using less energy, but which was also less stable. It is therefore not unusual to find that some watches able to run for several days display an extremely unpredictable level of precision.

This challenge was a powerful source of motivation! I then imagined that the best and the most obvious means of extending the running duration would be to extend the capacity of the spring development. The difficulty lay in integrating it on the same level as the gear-train and the escapement, given its stability: 1 metre and 1 millimetre thick. Thanks to the low torque of this spring, I could achieve extremely fast automatic winding (one and a half hours on a Chappuis cyclotest for over 5 days’ running).

Once the challenge of autonomy was thus successfully met with this automatic winding calibre, I knuckled down to the second challenge of managing to insert various complications into that same movement: power reserve with large date display, fly-back chronograph with large date display, retrograde annual calendar, etc… and of doing so while maintaining an identical size for all models.

Three years of research and development were required before this automatic winding movement that is unique in the world could be presented to the public.”

François-Paul Journe

Technical Specifications

Indications :

    Centre hours and minutes
    Small seconds at 4:30
    Large date
    Power-reserve indicator at 9h00
    Moon phase

Dimensions :
  • Overall diameter : 34.60 mm
  • Casing-up diameter : 30.40 mm
  • Overall height : 5.80 mm
  • Height of winding stem : 3.10 mm
  • Diameter of stem thread : S0.90 mm
  • Case Diameter : 40.00 mm
  • Overall Thickness : 10.6 mm
Characteristics :

    In-line lever escapement, 15-tooth wheel
    Balance with 4 inertia weights
    Flat Anachron microflamed spring
    Mobile stud holder
    Free-sprung balance
    Virolage laser Nivatronic
    Pinned GE stud
    Three-position crown Slipping mainspring
    Off-centre winding rotor

WINDING SPEED :

    on rotator:
    274 clockwise revolutions/24 hours (without mainspring slipping)

Characteristics :

    Uni-directional automatic winding
    Date setting by turning crown in opposite ways (position 2)
    Time setting with crown in position 3
    Instantaneous date change

FREQUENCY :

    21'600 Alt/h, (3Hz)

Balance :

    Inertia: 10.10 mg*cm2
    Angle of lift: 52°

Amplitude :

    12 h dial up : 280°
    90 h dial up : 220°

Autonomy :

    160 ± 10 hours

Number of jewels :

    36

Finish :

    High grade
    Circular stripes on the bridges
    Baseplate partly circular grained
    Polished screw heads with chamfered slots
    Pegs with polished rounded ends
    Steelwork with polished chamfers

Number of parts :

    Movement 271
    Cased up with strap 295

Indications :

    Centre hours and minutes
    Small seconds at 4:30
    Large date
    Power-reserve indicator at 9h00
    Moon phase

Dimensions :
  • Overall diameter : 34.60 mm
  • Casing-up diameter : 30.40 mm
  • Overall height : 5.80 mm
  • Height of winding stem : 3.10 mm
  • Diameter of stem thread : S0.90 mm
  • Case Diameter : 40.00 mm
  • Overall Thickness : 10.6 mm
Characteristics :

    In-line lever escapement, 15-tooth wheel
    Balance with 4 inertia weights
    Flat Anachron microflamed spring
    Mobile stud holder
    Free-sprung balance
    Virolage laser Nivatronic
    Pinned GE stud
    Three-position crown Slipping mainspring
    Off-centre winding rotor

WINDING SPEED :

    on rotator:
    274 clockwise revolutions/24 hours (without mainspring slipping)

Characteristics :

    Uni-directional automatic winding
    Date setting by turning crown in opposite ways (position 2)
    Time setting with crown in position 3
    Instantaneous date change

FREQUENCY :

    21'600 Alt/h, (3Hz)

Balance :

    Inertia: 10.10 mg*cm2
    Angle of lift: 52°

Amplitude :

    12 h dial up : 280°
    90 h dial up : 220°

Autonomy :

    160 ± 10 hours

Number of jewels :

    36

Finish :

    High grade
    Circular stripes on the bridges
    Baseplate partly circular grained
    Polished screw heads with chamfered slots
    Pegs with polished rounded ends
    Steelwork with polished chamfers

Number of parts :

    Movement 271
    Cased up with strap 295


At the heart of the movement
At the heart of the movement
Brevet - EP 1 760 544 A1
fpjourne

Technical description


(1) 22K Gold rotor with uni-directional winding
(2) Large capacity mainspring barrel
(3) Precision-adjustment weights
(4) Full-size free-sprung chronometer balance

Watches with long power reserves have hitherto been handicapped by small balances which are susceptible to shocks and disturbances. The Octa's compact construction allows a large (10.1 mm) balance to be fitted, giving greater inertia and stability. The free-sprung chronometer balance is adjusted by five turning weights that vibrate at a steady 21'600 times an hour.

Fully wound, the Octa delivers chronometric precision for 120 hours. The meter-long mainspring supplies an average 850gr of torque, limiting the loss in balance amplitude to 25% over the five-day period. Beyond that time, the watch will continue to go for another day or two, but the amplitude-loss no longer guarantees precision timekeeping.
Brevet - EP 1 760 544 A1
fpjourne

Technical description


(1) 22K Gold rotor with uni-directional winding
(2) Large capacity mainspring barrel
(3) Precision-adjustment weights
(4) Full-size free-sprung chronometer balance

Watches with long power reserves have hitherto been handicapped by small balances which are susceptible to shocks and disturbances. The Octa's compact construction allows a large (10.1 mm) balance to be fitted, giving greater inertia and stability. The free-sprung chronometer balance is adjusted by five turning weights that vibrate at a steady 21'600 times an hour.

Fully wound, the Octa delivers chronometric precision for 120 hours. The meter-long mainspring supplies an average 850gr of torque, limiting the loss in balance amplitude to 25% over the five-day period. Beyond that time, the watch will continue to go for another day or two, but the amplitude-loss no longer guarantees precision timekeeping.
  • About

    THIS MODEL WAS PRODUCED BETWEEN 2009 AND 2018.

    THE BOUTIQUE EDITION WITH BLACK DIAL ON 18K 6N GOLD CASE WAS AVAILABLE ONLY IN THE F.P.JOURNE BOUTIQUES AND ESPACES AND FOR ALL F.P.JOURNE MODELS, APART FROM THE STRIKING WATCHES.
  • Testimony

    Calibre OCTA

    A horological ideal

    “The construction of the Octa calibre has less powerful ties with horological history than do the constant-force device or resonance models, but it symbolises an horological ideal of giving timekeepers the highest possible degree of precision and autonomy!

    One can indeed note the fact that if church clocks are placed so high, in addition to enhancing visibility, it was mostly because it often took an entire month for the driving-weights to drop the length of their cords. Numerous systems were invented to increase the operating duration of timekeeping devices, meeting with various degrees of success. Given the small volume of a wristwatch, the size of the mainspring was automatically limited. Watchmakers therefore discovered the trick of adding an extra wheel to the customary geartrain in order to extend the duration of its development. Unfortunately, actually using this system, even with a stronger spring, led them to observe that the level of energy actually reaching the balance remained low. To compensate for this, they fitted a smaller balance using less energy, but which was also less stable. It is therefore not unusual to find that some watches able to run for several days display an extremely unpredictable level of precision.

    This challenge was a powerful source of motivation! I then imagined that the best and the most obvious means of extending the running duration would be to extend the capacity of the spring development. The difficulty lay in integrating it on the same level as the gear-train and the escapement, given its stability: 1 metre and 1 millimetre thick. Thanks to the low torque of this spring, I could achieve extremely fast automatic winding (one and a half hours on a Chappuis cyclotest for over 5 days’ running).

    Once the challenge of autonomy was thus successfully met with this automatic winding calibre, I knuckled down to the second challenge of managing to insert various complications into that same movement: power reserve with large date display, fly-back chronograph with large date display, retrograde annual calendar, etc… and of doing so while maintaining an identical size for all models.

    Three years of research and development were required before this automatic winding movement that is unique in the world could be presented to the public.”

    François-Paul Journe
  • Technical description

    Technical Specifications

    Indications :

      Centre hours and minutes
      Small seconds at 4:30
      Large date
      Power-reserve indicator at 9h00
      Moon phase

    Dimensions :
    • Overall diameter : 34.60 mm
    • Casing-up diameter : 30.40 mm
    • Overall height : 5.80 mm
    • Height of winding stem : 3.10 mm
    • Diameter of stem thread : S0.90 mm
    • Case Diameter : 40.00 mm
    • Overall Thickness : 10.6 mm
    Characteristics :

      In-line lever escapement, 15-tooth wheel
      Balance with 4 inertia weights
      Flat Anachron microflamed spring
      Mobile stud holder
      Free-sprung balance
      Virolage laser Nivatronic
      Pinned GE stud
      Three-position crown Slipping mainspring
      Off-centre winding rotor

    WINDING SPEED :

      on rotator:
      274 clockwise revolutions/24 hours (without mainspring slipping)

    Characteristics :

      Uni-directional automatic winding
      Date setting by turning crown in opposite ways (position 2)
      Time setting with crown in position 3
      Instantaneous date change

    FREQUENCY :

      21'600 Alt/h, (3Hz)

    Balance :

      Inertia: 10.10 mg*cm2
      Angle of lift: 52°

    Amplitude :

      12 h dial up : 280°
      90 h dial up : 220°

    Autonomy :

      160 ± 10 hours

    Number of jewels :

      36

    Finish :

      High grade
      Circular stripes on the bridges
      Baseplate partly circular grained
      Polished screw heads with chamfered slots
      Pegs with polished rounded ends
      Steelwork with polished chamfers

    Number of parts :

      Movement 271
      Cased up with strap 295

    Indications :

      Centre hours and minutes
      Small seconds at 4:30
      Large date
      Power-reserve indicator at 9h00
      Moon phase

    Dimensions :
    • Overall diameter : 34.60 mm
    • Casing-up diameter : 30.40 mm
    • Overall height : 5.80 mm
    • Height of winding stem : 3.10 mm
    • Diameter of stem thread : S0.90 mm
    • Case Diameter : 40.00 mm
    • Overall Thickness : 10.6 mm
    Characteristics :

      In-line lever escapement, 15-tooth wheel
      Balance with 4 inertia weights
      Flat Anachron microflamed spring
      Mobile stud holder
      Free-sprung balance
      Virolage laser Nivatronic
      Pinned GE stud
      Three-position crown Slipping mainspring
      Off-centre winding rotor

    WINDING SPEED :

      on rotator:
      274 clockwise revolutions/24 hours (without mainspring slipping)

    Characteristics :

      Uni-directional automatic winding
      Date setting by turning crown in opposite ways (position 2)
      Time setting with crown in position 3
      Instantaneous date change

    FREQUENCY :

      21'600 Alt/h, (3Hz)

    Balance :

      Inertia: 10.10 mg*cm2
      Angle of lift: 52°

    Amplitude :

      12 h dial up : 280°
      90 h dial up : 220°

    Autonomy :

      160 ± 10 hours

    Number of jewels :

      36

    Finish :

      High grade
      Circular stripes on the bridges
      Baseplate partly circular grained
      Polished screw heads with chamfered slots
      Pegs with polished rounded ends
      Steelwork with polished chamfers

    Number of parts :

      Movement 271
      Cased up with strap 295


    At the heart of the movement
    At the heart of the movement
    Brevet - EP 1 760 544 A1
    fpjourne

    Technical description


    (1) 22K Gold rotor with uni-directional winding
    (2) Large capacity mainspring barrel
    (3) Precision-adjustment weights
    (4) Full-size free-sprung chronometer balance

    Watches with long power reserves have hitherto been handicapped by small balances which are susceptible to shocks and disturbances. The Octa's compact construction allows a large (10.1 mm) balance to be fitted, giving greater inertia and stability. The free-sprung chronometer balance is adjusted by five turning weights that vibrate at a steady 21'600 times an hour.

    Fully wound, the Octa delivers chronometric precision for 120 hours. The meter-long mainspring supplies an average 850gr of torque, limiting the loss in balance amplitude to 25% over the five-day period. Beyond that time, the watch will continue to go for another day or two, but the amplitude-loss no longer guarantees precision timekeeping.
    Brevet - EP 1 760 544 A1
    fpjourne

    Technical description


    (1) 22K Gold rotor with uni-directional winding
    (2) Large capacity mainspring barrel
    (3) Precision-adjustment weights
    (4) Full-size free-sprung chronometer balance

    Watches with long power reserves have hitherto been handicapped by small balances which are susceptible to shocks and disturbances. The Octa's compact construction allows a large (10.1 mm) balance to be fitted, giving greater inertia and stability. The free-sprung chronometer balance is adjusted by five turning weights that vibrate at a steady 21'600 times an hour.

    Fully wound, the Octa delivers chronometric precision for 120 hours. The meter-long mainspring supplies an average 850gr of torque, limiting the loss in balance amplitude to 25% over the five-day period. Beyond that time, the watch will continue to go for another day or two, but the amplitude-loss no longer guarantees precision timekeeping.

Technical Specifications

Indications :

    Centre hours and minutes
    Small seconds at 4:30
    Large date
    Power-reserve indicator at 9h00
    Moon phase

Dimensions :
  • Overall diameter : 34.60 mm
  • Casing-up diameter : 30.40 mm
  • Overall height : 5.80 mm
  • Height of winding stem : 3.10 mm
  • Diameter of stem thread : S0.90 mm
  • Case Diameter : 40.00 mm
  • Overall Thickness : 10.6 mm
Characteristics :

    In-line lever escapement, 15-tooth wheel
    Balance with 4 inertia weights
    Flat Anachron microflamed spring
    Mobile stud holder
    Free-sprung balance
    Virolage laser Nivatronic
    Pinned GE stud
    Three-position crown Slipping mainspring
    Off-centre winding rotor

WINDING SPEED :

    on rotator:
    274 clockwise revolutions/24 hours (without mainspring slipping)

Characteristics :

    Uni-directional automatic winding
    Date setting by turning crown in opposite ways (position 2)
    Time setting with crown in position 3
    Instantaneous date change

FREQUENCY :

    21'600 Alt/h, (3Hz)

Balance :

    Inertia: 10.10 mg*cm2
    Angle of lift: 52°

Amplitude :

    12 h dial up : 280°
    90 h dial up : 220°

Autonomy :

    160 ± 10 hours

Number of jewels :

    36

Finish :

    High grade
    Circular stripes on the bridges
    Baseplate partly circular grained
    Polished screw heads with chamfered slots
    Pegs with polished rounded ends
    Steelwork with polished chamfers

Number of parts :

    Movement 271
    Cased up with strap 295

Indications :

    Centre hours and minutes
    Small seconds at 4:30
    Large date
    Power-reserve indicator at 9h00
    Moon phase

Dimensions :
  • Overall diameter : 34.60 mm
  • Casing-up diameter : 30.40 mm
  • Overall height : 5.80 mm
  • Height of winding stem : 3.10 mm
  • Diameter of stem thread : S0.90 mm
  • Case Diameter : 40.00 mm
  • Overall Thickness : 10.6 mm
Characteristics :

    In-line lever escapement, 15-tooth wheel
    Balance with 4 inertia weights
    Flat Anachron microflamed spring
    Mobile stud holder
    Free-sprung balance
    Virolage laser Nivatronic
    Pinned GE stud
    Three-position crown Slipping mainspring
    Off-centre winding rotor

WINDING SPEED :

    on rotator:
    274 clockwise revolutions/24 hours (without mainspring slipping)

Characteristics :

    Uni-directional automatic winding
    Date setting by turning crown in opposite ways (position 2)
    Time setting with crown in position 3
    Instantaneous date change

FREQUENCY :

    21'600 Alt/h, (3Hz)

Balance :

    Inertia: 10.10 mg*cm2
    Angle of lift: 52°

Amplitude :

    12 h dial up : 280°
    90 h dial up : 220°

Autonomy :

    160 ± 10 hours

Number of jewels :

    36

Finish :

    High grade
    Circular stripes on the bridges
    Baseplate partly circular grained
    Polished screw heads with chamfered slots
    Pegs with polished rounded ends
    Steelwork with polished chamfers

Number of parts :

    Movement 271
    Cased up with strap 295


At the heart of the movement
At the heart of the movement
Brevet - EP 1 760 544 A1
fpjourne

Technical description


(1) 22K Gold rotor with uni-directional winding
(2) Large capacity mainspring barrel
(3) Precision-adjustment weights
(4) Full-size free-sprung chronometer balance

Watches with long power reserves have hitherto been handicapped by small balances which are susceptible to shocks and disturbances. The Octa's compact construction allows a large (10.1 mm) balance to be fitted, giving greater inertia and stability. The free-sprung chronometer balance is adjusted by five turning weights that vibrate at a steady 21'600 times an hour.

Fully wound, the Octa delivers chronometric precision for 120 hours. The meter-long mainspring supplies an average 850gr of torque, limiting the loss in balance amplitude to 25% over the five-day period. Beyond that time, the watch will continue to go for another day or two, but the amplitude-loss no longer guarantees precision timekeeping.
Brevet - EP 1 760 544 A1
fpjourne

Technical description


(1) 22K Gold rotor with uni-directional winding
(2) Large capacity mainspring barrel
(3) Precision-adjustment weights
(4) Full-size free-sprung chronometer balance

Watches with long power reserves have hitherto been handicapped by small balances which are susceptible to shocks and disturbances. The Octa's compact construction allows a large (10.1 mm) balance to be fitted, giving greater inertia and stability. The free-sprung chronometer balance is adjusted by five turning weights that vibrate at a steady 21'600 times an hour.

Fully wound, the Octa delivers chronometric precision for 120 hours. The meter-long mainspring supplies an average 850gr of torque, limiting the loss in balance amplitude to 25% over the five-day period. Beyond that time, the watch will continue to go for another day or two, but the amplitude-loss no longer guarantees precision timekeeping.