Case back: Sealed Stainless Steel Back Case Case diameter: 40 mm Thickness : 9.6 mm Length: 24 mm (Circle-length) Strap Material: 316 L Stainless Steel Mesh Band Strap Width: 22 mm Glass: Hardlex Mineral (Combines Severals Layers of Anti-Reflective Coating) Dial: Sweeping Northern Lights Display Water Resistance: 3 ATM = 3 Bar (Life Waterproof)