Vagabondage III
Steel 38mm Set
Chronomètre Bleu Byblos
France-China 50 / Octa Automatique Lune
10 Years Anniversary Tourbillon
30 Years Anniversary Tourbillon
Octa Automatique Réserve Sport Indy 500
Vagabondage II
Vagabondage I
Octa Zodiaque

France-China 50 / Octa Automatique Lune Calibre 1300.3 FP Journe FP Journe

Blue dial with white Gold numerals
and F.P. Journe logotype / France-China 50
Finishing
Blue dial with white Gold numerals
and F.P. Journe logotype / France-China 50
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 : 30.80 mm
  • Casing-up diameter : 30.40 mm
  • Overall height : 5.70 mm
  • Height of winding stem : 3.00 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 mgcm2
    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
    Gilt engravings
    Polished screw heads with chamfered slots
    Pegs with polished rounded ends
    Steelwork with polished chamfers

Number of parts :

    Movement 273
    Cased up with strap 310


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.
Other views
fpjourne

About

This model was produced in 2014

F.P.Journe, Official Watchmaker of France – China 50
Commemoration of the 50th anniversary of diplomatic relations between the French Republic and the People’s Republic of China
With over 30 years of savoir-faire and creativity, F.P. Journe is the Official Watchmaker of France-China 50 to represent excellence in the field of haute horology. Patron of the event, F.P. Journe has designed the commemorative watch that has been presented during the different events of France-China 50. Leader among the most prestigious horological firms, F.P. Journe has opened an exclusive network of 9 Boutiques over the world, including one rue du Faubourg St Honoré in Paris, next to the Elysée Palace, and 1 Boutique in China since 2006, in Hong Kong’s Landmark Prince’s Building.

The Commemorative Watch Octa Automatique Lune
The Platinum case features a novel blue dial dedicated for this event with gold arabic numerals, hours minutes, small seconds, phases of the moon, an exceptional power reserve of over 120 hours, a large date and the F.P. Journe and France-China 50 logos. The mechanical movement with automatic winding in 18K rose Gold beating to a frequency of 21,600v/h is visible through the transparent sapphire back.

The unidirectional off centre F.P. Journe rotor in 22K rose Gold includes a self-locking ball bearing system. Each infinitesimal movement is thus exploited for an optimized winding of the watch.
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 : 30.80 mm
  • Casing-up diameter : 30.40 mm
  • Overall height : 5.70 mm
  • Height of winding stem : 3.00 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 mgcm2
    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
    Gilt engravings
    Polished screw heads with chamfered slots
    Pegs with polished rounded ends
    Steelwork with polished chamfers

Number of parts :

    Movement 273
    Cased up with strap 310


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.