DeWitt Academia Perpetual Calendar GMT Reference: dw 7021-35 Full set as shown in the photo. Description A refined and complex timepiece from the Geneva-based manufacturer DeWitt, the Academia Quantième Perpétuel gmt model combines elegance and mechanical engineering excellence. The 43 mm case combines 18 kt rose gold and satin-finished titanium, with the iconic side columns typical of the Academia collection. The finely guilloché dial features the perpetual calendar and second time zone indications, arranged with balance and great legibility. The sapphire crystal case back reveals the finely finished DeWitt DW7021 automatic movement with a customized skeletonized rotor. Technical data Movement: DeWitt DW7021 self-winding mechanical movement (based on Girard-Perregaux GP3000) Number of jewels: 34 Frequency: 28,800 vph (4 Hz) Power reserve: approx. 42 hours Case: 18-karat rose gold and titanium Diameter: 43 mm Thickness: approx. 13.5 mm Glass: Anti-reflective sapphire (front and back) Dial: Silver-gray guilloché with multiple counters and applied hour markers Strap: Blue alligator leather with DeWitt folding clasp in rose gold Water resistance: 30 meters (3 atm) Functions Hours, minutes, central seconds Perpetual calendar (date, day, month, leap year) Second time zone (GMT) with 24-hour display Day/night indicator Quick correction via pushers on the case middle Condition and accessories Complete with original DeWitt box and papers.