Features: Stainless Steel Case Leather Strap Automatic Movement Caliber: F6724 22 Jewels Mineral Crystal Blue Dial Analog Display Date Display Push/Pull Crown See Through Case Back Buckle Clasp 30m Water Resistance Approximate Case Diameter: 40mm Approximate Case Thickness: 12mm Approximate Lug Width: 21mm Alternate Model Numbers: RA-AC0021L, RA-AC0021L10B, RA-AC0021L30B