No00-Prototype Ref. 6850 CC QPB Perpetual Calendar Bi Retrograde in Yellow Gold

Rare Franck Muller No00-Prototype Ref. 6850 CC QPB Perpetual Calendar Bi Retrograde in Yellow Gold from 2000s

Franck Muller 6850 CC QPB Perpetual Calendar Bi Retrograde features a 41mm x 36mm Yellowgold case and scratch-resistant sapphire crystal. The silver guilloche dial possesses printed hour indices, printed black minute calibrations, retrograde date and small seconds at 3, moonphase at 6, retrograde days and 12 hour indicator at 9, months at 12, and metallic blue center hands with luminous fills. Powering this Perpetual Calendar is a self-winding Swiss movement that boasts about a 42-hour power reserve. * No00-Prototype

Experience this rare collector’s timepiece at 2ToneVintage Watches, Singapore