Chronomètre Bleu
Chronomètre Souverain
Chronomètre Souverain Havana
Centigraphe Souverain
Chronomètre à Résonance
Chronomètre Optimum
Tourbillon Souverain
Répétition Souveraine
Sonnerie Souveraine
Souveraine Collection

Result of technical watchmaking challenges
thrusts beyond the limits.

Chronomètre Bleu Calibre 1304

Tantalum Case
Diameter: 39mm
Height: 8.60 mm
Dial: Chrome blue

Finishing
Tantalum Case
Diameter: 39mm
Height: 8.60 mm
Dial: Chrome blue

Calibre 1304
Technical Specifications
Movement :
  • Manually wound : 38 turns
  • Movement in 18K rose gold : 22 jewels
Dimensions :
  • Overall diameter : 30.40 mm
  • Casing-up diameter : 29.60 mm
  • Overall height : 3.75 mm
  • Height of winding system : 2.10 mm
  • Diameter of stem thread : S0.90 mm
Balance :

    Four inertia weights
    Flat Anachron micro flamed spring
    Mobile stud holders
    Free sprung
    Nivatronic laser-welded to collet
    Pinned GE stud
    Frequency: 21,600 v/h (3Hz)
    Inertia: 10.10 mg/cm2
    Angle of lift: 52°

Amplitude :
  • 0h dial up : 320°
  • 24h dial up : 280°
Characteristics :

    Manual winding
    Two mainspring barrels in parallel
    Time adjustment via crown in position 2
    Pallet escapement with 15 tooth escape wheel
    Two position crown

Indications :

    Central hours and minutes
    Sub-second at 7:30
    Power reserve:
    56 hours +- 2h.

Decoration :

    High quality
    Partly circular grained base plate, with barleycorn guilloché
    Polished screw heads, chamfered slots
    Pegs with polished rounded ends

Number of parts :
  • Mouvement without dial : 129
  • Cased-up on leather strap : 166

At the heart of the movement
Technical description

Mechanical movement with manual winding, 13 lines x 3.75 mm, 21'600 v/h, free-sprung long mysterious balance with connecting train placed under the dial. Baseplate and bridges in 18K rose Gold.
Other views
About
Precision Chronometer
The Chronomètre Bleu offers a new approach of high precision, with perfect chronometric virtues.

The Chronomètre Bleu is innovative with its 39 mm case made for the first time of Tantalum, a rare dark grey metal with blue overtones. Tantalum is a wonderful metal but rarely used in watchmaking as it is hard and very difficult to manipulate, due to its very high fusion temperature of 3800° and a density of 16.6. Tantalum is also precious as it is highly resistant to corrosion and wear. It also offers non allergic properties as it is totally bio compatible with the human body.

The blue chrome dial is in perfect harmony with the colour of the case in a contemporary spirit. The F.P. Journe hands, matching the large cream-coloured Arabic numerals, mark the hours while the guilloché seconds dial at 7:30 enhances the mirror effect of the main dial.

Through the transparent back, the balance and escapement appear to be mysteriously detached from the movement, beating with no apparent motive force. F.P. Journe has placed the connecting train under the dial, leaving only the centre wheel to highlight the isolation of the balance.

The manually wound movement of the Chronomètre Bleu oscillates at 21,600v/h. Twin barrels, in the classic configuration of precision watches, work in parallel to deliver stable power for much of its 56-hour full autonomy. The F.P. Journe free-sprung chronometer balance with inertia adjustment on four opposing weights is dynamically adjusted to all positions, with an emphasis on constancy of rate.
Technical Specifications
Movement :
  • Manually wound : 38 turns
  • Movement in 18K rose gold : 22 jewels
Dimensions :
  • Overall diameter : 30.40 mm
  • Casing-up diameter : 29.60 mm
  • Overall height : 3.75 mm
  • Height of winding system : 2.10 mm
  • Diameter of stem thread : S0.90 mm
Balance :

    Four inertia weights
    Flat Anachron micro flamed spring
    Mobile stud holders
    Free sprung
    Nivatronic laser-welded to collet
    Pinned GE stud
    Frequency: 21,600 v/h (3Hz)
    Inertia: 10.10 mg/cm2
    Angle of lift: 52°

Amplitude :
  • 0h dial up : 320°
  • 24h dial up : 280°
Characteristics :

    Manual winding
    Two mainspring barrels in parallel
    Time adjustment via crown in position 2
    Pallet escapement with 15 tooth escape wheel
    Two position crown

Indications :

    Central hours and minutes
    Sub-second at 7:30
    Power reserve:
    56 hours +- 2h.

Decoration :

    High quality
    Partly circular grained base plate, with barleycorn guilloché
    Polished screw heads, chamfered slots
    Pegs with polished rounded ends

Number of parts :
  • Mouvement without dial : 129
  • Cased-up on leather strap : 166

At the heart of the movement
Technical description

Mechanical movement with manual winding, 13 lines x 3.75 mm, 21'600 v/h, free-sprung long mysterious balance with connecting train placed under the dial. Baseplate and bridges in 18K rose Gold.