The Chronomètre Optimum represents the pinnacle of F.P. Journe's chronometric research and commitment to wristwatch precision. It features a titanium constant-force remontoire (patent EP1528443.A1) for isochronism and the oil-free, self-starting EBHP High-Performance Bi-axial Escapement (patent EP11405210.3). The dial showcases the power reserve and remontoire, while the 18ct rose gold movement is visible through the sapphire caseback, displaying a natural dead beat second.
Shape
Round
Material
Platinum
Glass
Sapphire
Thickness
10.10 mm
Dial Color
Silver
Diameter
42.00 mm
