F.P. Journe
Chronomètre Optimum Black Label
Ref. CO · BLACK LABEL
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Specifications
Reference
- Collection
- Black Label Collection
- Reference
- CO · BLACK LABEL
Case
- Material
- Platinum
- Size
- 40 mm
Movement
- Calibre
- Manual
- Power reserve
- 70 hours
About this reference
Discover the Black Label Chronomètre Optimum watch from the F.P.Journe Boutique Collection Overview: Reference: CO; Collection: Black Label Collection; Caliber: Calibre 1510; Patent: EP 11405210.3 / EP 1 528 443 A1 / EP 1 760 544 A1; Case & dial options: 1 published on fpjourne.com. Mouvement: Details: Calibre 1510 Manual winding / 27 turns of crown 18K rose Gold. Dimensions: Overall diameter: 34.00 mm; Casing-up diameter: 33.60 mm; Height: 5.80 mm; Height of winding system: 2.395 mm; Diameter of stem thread: S1.20mm. Balance: Details: Chronometric balance with inertia weight Hair spring with Phillips curve Mobile stud holder Free sprung Pinned GE stud. Frequency: Details: 21,600 Alt/h (3Hz). Inertia: Details: 10.10 mg/cm2. Angle of lift: Details: 58°. Amplitude: Details: 0h dial up: 260° 24h dial up: 260°. Characteristics: Details: 1 second remontoire at 11h, very light in Titanium and balanced Natural dead beat second on the back of the movement High performance Bi-axial escapement with arbor and wheels in Titanium, functioning without oil, (inspired by that of A.L. Breguet created in the XVIII Century) 2 mainspring barrels in parallel 2 position crown Time adjustment in position 2. Indications: Details: Off centre hours and minutes at 3h00 Small second at 9h00 Power reserve at 6h00 Large dead beat second on the back. Autonomy: Details: 70 ± 2 hours. Finishes: Details: Circular graining on baseplate Geneva waves on bridges Polished screw heads with chamfered slots Pegs with polished rounded ends. Number of parts: Details: Movement without dial : 240 Cased up with strap : 264 Jewels: 44. Movement description: –: (1) High Performance Bi-axial Escapement (2) Double mainspring barrels in parallel (3) Natural dead beat second in the back (4) Constant force remontoire --- The Chronomètre Optimum embodies the culmination of F.P. Journe chronometric research for a wristwatch. - The double barrel with its two springs ensures the stability of the driving force of this emblematic movement made of 18K rose Gold, a specificity of the brand. - The constant-force remontoire (patent EP1528443.A1) balances the driving force applied to the escapement to make it constant. By add
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