Features: Stainless Steel Case Leather Strap Automatic Movement Caliber: 72 21 Jewels Sapphire Crystal With Double Sided Anti-Reflection Treatment White Dial Analog Display Power Reserve Up to 72 Hours Date Display See Through Case Back Buckle Clasp 30M Water Resistance Approximate Case Diameter: 39.00 mm Approximate Case Thickness: 7.30 mm Approximate Lug Width: 20.00 mm