Casing: Stainless Steel with non reflective light sand blasted finish Crown: Screwdown Locking Water Resistance: 30ATM/300m/1000ft Movement: Swiss Ronda 517 Day/Date Battery Life: 45 Months Dimensions: Width Inc Crown 45mm (Exc Crown 40mm) Thickness: 12mm Lug to Lug: 46.5mm Crystal Diameter 31mm Crystal Type: Sapphire with non reflective coating * Luminous Paint Type: Luminova 120 Click Unidirectional Bezel Weight: 89.5g Strap: Elasticated Nylon French Military Webbing Strap and also a standar