Movement Automatic Caliber/movement 2230 Base caliber 2230 Power reserve 42 h Number of jewels 31 Case material Steel Case diameter 31 mm Water resistance 10 ATM Bezel material Steel Crystal Sapphire crystal Dial Silver Dial numerals Arabic numerals Bracelet material Steel Bracelet color Steel Clasp Fold clasp Clasp material Steel Documents: Dealer Invoice and guarantee card for 12 month , No original documents Box: No original box Delivery immediately by express courier