Model: Riedenschild Watch - Riedenschild Dark Sea Diver Multi-Calendar Watch 1113-01 Case material: Solid stainless steel case with screw down see through case back Case dimensions: 45mm (1 3/4") in diameter not including the crown; 15.5mm (9/16") in thickness Weight: 8.7 oz with metal bracelet, 4.23 oz with rubber band Movement: 20 jewel GeMatic 2350 automatic movement; 32 hour power reserve Crystal type: Highly scratch resistant sapphire crystal Crown: Push and pull crown Water resistant: 100 meters Face color: Black dial Band type: Two watch bands: stainless steel band with fold over safety clasp with push button and black rubber strap; band changing tool included Lug size: 22mm Band length: Will fit 5 3/4 - 8 1/2" wrist Additional features: Internal rotating bezel; Day-Date display; 24 hour display; Month display; Year display; Luminous hands and markers Warranty: 2 year warranty on all Riedenschild watches Items included: Original Riedenschild packaging with owner's manual warranty material