Exterior: Platinum Back: Platinum and sapphire glass Back Cover Specifications: See-through screw back Glass Material: Box-shaped sapphire Coating: Internal anti-reflective coating Case Size: 43.0 mm (width), 51.8 mm (height), 13.2 mm (thickness) Band Width: 22mm Band Material: Crocodile Clasp: One-push three-fold closure Maximum wrist length: 195mm Movement Caliber No.: 9R01 Instructions Driving system: Spring drive manual winding Duration: Approx. 192 hours (approx. 8 days) at maximum winding Accuracy: ±10 seconds per month on average (equivalent to ±0.5 seconds per day) Functions Water resistance: 10 atmospheres Antimagnetic: Yes Weight: 168 g Other: 1.5 mm Central ring: PT950 (partly PT900) Number of jewels: 56 Power reserve indicator Time correction function