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Gents, F.P. Journe Chronometre Optimum, in Platinum on original strap with Platinum tang buckle, screwed in Sapphire display caseback, knurled crown, case diameter 42mm. Manual-wind 44j Calibre 1510 movement in rose gold, with high-performance bi-axial escapement, and natural deadbeat seconds, Power reserve, off center time display. Matte grey dial with remontoir at 11 o'clock, Silver registers for time display at 3 o'clock and sub seconds at 9 o'clock, and a power reserve indicator. Box and Papers.
François-Paul Journe first conceived of the concept for the Chronomètre Optimum in 2001. Designed with the aim to reduce internal friction, the Chronomètre Optimum shares the double barrels of its predecessor, the Chronomètre Souverain. The remontoir d'egalité system, seen in the earlier Tourbillon Souverain, ensures that the force generated by the double barrels remains balanced throughout the mechanism of the movement. In addition to the remontoir, the Chronomètre Optimum features a newly-designed escapement which Journe patented as the "EBHP direct impulse escapement." The High-Performance Bi-Axial Escapement features two wheels and functions without oil or lubricant, a traditional method first employed in escapements from the 18th-century. As a result, the EBHP divides the pressure of the escapement wheels, giving it a 50-hour power reserve.
|Reference #:||Chronometre Optimum|
|Bracelet Strap:||Original Reptile Strap|
|Buckle Clasp:||Platinum Tang|
|Case back:||Sapphire Display Screwed in|
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