AVI-8 Men's AV-4024-0A Lancaster Bomber Analog Display Japanese Quartz Brown Watch Powered by a Japanese quartz chronograph, this Lancaster Bomber watch features a genuine leather bund strap that was common amongst pilots in the early 20th century to help keep sweat and the temperature sensitive case off the skin Genuine leather bund strap, mineral lens, and stainless steel case Japanese-quartz Movement Case Diameter: 44mm Water Resistant To 165 Feet