The Submaster is a British designed quartz date military divers watch. Traditional stainless steel finish complete with high quality 20mm NATO strap. The black dial is enhanced with Submaster in white and retro military Gladiator Hands. Fully waterproof to 300m/ 1000ft pressure tested. The matte finish on the case gives the watch anti-reflective qualities when on daylight missions.The special Gladiator Hands are designed for much better visibility under low light conditions, either underwater or on night operations. The bezel insert is equipped with full 60 individual minute markers, this was originally designed so that military frogmen would be able to synchronize perfectly on dangerous covert missions. Case: 42 exc crown and 45mm inc crown Crystal diameter: 30 mm Lug to lug is 47 mm Case Thickness: 12mm Case Material: 316L Stainless Steel Caseback: 316L Stainless Steel Crown: 316L Stainless Steel Water Resistance: 30 atm (300m) Glass: Hardened Mineral Glass Miyota 2115 Quartz Watch Movement