Stainless steel surgical quality 316L case Automatic movement 21 jewels Observation back to view engraved movement 40 hour reserve Sub dial 24 hour mode Sub dial date indicator Sub dial second hand Leather croco strap with deployment clasp 100 feet water resistant Mineral glass scratch resistant 42mm diameter Band Color: Black Leather; Band Width: 22mm near case; 20mm near clasp/buckle; Bezel Color: Silver; Case: Silver + Tonneau-shaped; Case Finish: Polished + Stainless Steel; Case Thickness: 14mm; Case Width: 41mm; 45mm with crown; Clasp / Buckle: Strap Buckle; Dial: Black + analog; Hand Color: Silver; Movement: Japanese + automatic; Time Zones: Single; Water Resistance: 5 atm;