F. P. Journe Chronomètre Bleu

F.P. Journe Chronomètre Bleu

F. P. Journe announces the Chronomètre Bleu. The 39mm case is carved from tantalum, a dark gray metal with blue overtones. Tantalum is rarely used in watchmaking because its density and high melting temperature make it difficult to manipulate. Through the display back, the balance and escapement appear mysteriously detached from the movement, beating with no apparent motive force. Journe has placed the connecting train under the dial, leaving only the center wheel to highlight the isolation of the balance.

The manually wound movement oscillates at 21,600v/h. Twin barrels work in parallel to deliver stable power for much of its 56-hour autonomy. The F.P.Journe free-sprung chronometer balance with inertia adjustment on four opposing weights is dynamically adjusted to six positions, with an emphasis on constancy of rate.

The Chronomètre Bleu is available now at all F.P.Journe Boutiques in New York, Beijing, Paris, Tokyo, Geneva, Hong Kong and Boca Raton, as well as throughout all authorized F.P.Journe retailers worldwide.

F.P. Journe Chronomètre Bleu

Technical Specifications

Calibre 1304
Manually wound by 38 turns
Movement in 18K rose gold
22 jewels

Dimensions of the Movement
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

Four inertia weights
Flat Anachron microflamed spring
Mobile stud holders
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°

Principal 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

Central hours and minutes
Sub-seconds at 7:30

Power reserve
56 hours +/- 2 hours

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

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

Number of Pieces
Movement without dial: 133
Cased-up on leather strap: 166

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