WARRANTY: 2 years international warranty; WATER RESISTANCE: 10 ATM (100 meters / 330ft); MOVEMENT: Automatic movement | Seiko NH35 Japan Made; CASE: Stainless Steel solid 316L with "OOO® exclusive aging process" with aluminum OOO® hand-brushed bi-directional turning bezel; Case Diameter: 40mm Case Thickness: 14mm Lug to Lug:44.5mm BEZEL: Bi-directional shock-resistant Sand aluminium topring with printed numbers; DIAL: Sand sandblasted and sunburnt finished double-layer matt dial with C3 SuperLuminova® hands, engraved and applied indexes, double printed logo and specs; GLASS: flat anti-reflective sapphire crystal with magnifier at hrs 3; CASEBACK: 316L Stainless Steel screw IP Gun caseback with window and sand color printed logo and specs; CROWN: Stainless Steel IP Gun screw crown; WATER RESISTANCE: 10 ATM (100 meters) - 330ft; STRAP: 20mm width Sand Premium Canvas strap paired with bovine leather, hand-stitched, made in Italy. INNER RING: a very important communication; Technical specifications Case diameter: 40 mm Thickness: 14 mm Water resistance: 10 ATM Movement: Seiko NH35 Japan Made Case material: Stainless Steel Crystal: sapphire crystal