SIZE FACE 40mm Diameter THICKNESS 11mm (top of glass to bottom caseback) STRAP 20mm Width THE SPECS CASE Gunmetal 316L Surgical Grade Stainless Steel DIAL Gray MOVEMENT Citizen Miyota Quartz INTERCHANGEABLE STRAP Top-Grain Italian Leather (Walnut) WATER RESISTANCE 5 ATM GLASS Sapphire Coated Crystal (Scratch Resistant) CASEBACK Italian Marble Showcase SPECS SIZE FACE 40mm Diameter THICKNESS 11mm (top of glass to bottom caseback) STRAP 20mm Width CASE Gunmetal 316L Surgical Grade Stainless Steel DIAL Gray MOVEMENT Citizen Miyota Quartz INTERCHANGEABLE STRAP Top-Grain Italian Leather (Walnut) WATER RESISTANCE 5 ATM GLASS Sapphire Coated Crystal (Scratch Resistant) CASEBACK Italian Marble Showcase