The Franck Muller Cintrée Curvex Perpetual Calendar (ref. 6850 QPE) is a men's dress watch with a 36 mm barrel case in platinum. It has a black dial under sapphire crystal.
It is powered by the hand-wound mechanical calibre 1188MC, with a power reserve of 60 hours. Functions: Perpetual calendar, retrograde date display, day/night indicator, moon phases, chronograph. Water-resistant to 30 m. The watch is fitted with an alligator leather strap with a classic buckle in platinum.
This example is in perfect condition, and comes with the original box and papers.