F. P. Journe Optimuim Platinum 42 Chronometre Optimum Platinum / Silver Dial 42MM (31317)

31317 F.P. Journe Chronometre Optimum, platinum case with a platinum tang buckle, solid 18K rose gold FP Journe manual wind caliber 1510 movement, 70-hour power reserve, EBHP direct impulse escapement uses 2 wheels without use of oil or lubricants, double barrel layout, rementoir d'egalite system stores and releases energy in a consistent 1 second interval, silver dial, large painted arabic numerals, sapphire crystal, display back, size 42mm, thickness 9.8mm, like new with original box and papers dated September 2015.

$53,500

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More about F. P. Journe Optimuim Platinum 42 Chronometre Optimum Platinum / Silver Dial 42MM

This a platinum F.P. Journe Chronometre Optimum 064-CO It has an alligator leather strap with a platinum F.P. Journe tang buckle, and a scratch resistant sapphire crystal. There is an exhibition sapphire display case back secured with 6 screws, and engraved with "F.P. Journe – PT 950 (950 Platinum) - Chronometre Optimum – Inv. Fecit (Created and made)." It has an oversized, knurled winding crown, and the 42mm diameter solid three-body case, downturned lugs, and angled bezel are polished. The dial is silver with a guilloche center, and an off-center time dial with black Arabic numeral hour markers around a railroad-style minute track. It has blued epee hands and around the outside is a 60-minute track with Arabic numeral minute markers every five-minutes. At 11 o'clock is an open aperture that shows the visible wheel of the constant-force remontoir. There is a 70-hour power reserve with a 50 hour arc between 7 and 8 o'clock (it will run without loss of amplitude for 50-hours). There is a subsidiary running seconds dial at 9 o'clock, adjacent to the time dial, and surrounded by a single raised platinum gasket. It's water resistant to 30 meters/100 feet, and the 9.8mm thick case, dial, and movement are all signed.

This F.P. Journe Chronometre Optimum 064-CO has a mechanical manual winding FP Journe caliber 1510, that's made of solid 18K rose gold. It's constructed with 44 jewels, 240 components, and it has an EBHP direct impulse biaxial escapement that utilizes 2 wheels without requiring any oil or lubricants (patent EP11405210.3). It has a double barrel with two springs, a shock absorber device, and a constant-force remontoir made of Titanium (patent EP1528443.A1). The remontoir d'egalite system stores and releases energy in precise 1-second intervals. It has a monometallic balance with a spiral with a Phillips curve for enhanced equilibrium that's adjusted for isochronism and 6 positions. Visible through the sapphire back is a dead beat seconds indicator circle that's screwed onto one of the bridges and connected to the remontoir.

The F.P. Journe Chronometre Optimum 064-CO was introduced in 2012.