Tourbillon Extra-Plat 5367
Case in 18-carat rose gold with a finely fluted caseband. Sapphire crystal caseback. Diameter 42 mm. Dial in “Grand Feu” enamel. Mechanical movement self-winding, extra-thin ( 3 mm), Cal. 581. 80-hour power reserve. Inverted lateral lever escapement with silicon horns. Balance spring in silicon. Tourbillon with titanium carriage. Small seconds on the tourbillon axis. Frequency 4 Hz. Also in platinum.