Mechanical Movement * 17 Jewels * Date Calender * 24-Hour Scale * Shock Protection * Power Reserve 42hr * Water Resistant 30 Meters * Case Diameter: 45mm, Thickness: 12.5mm, Band Width: 22mm * Mineral Crystal Glass * LA-5 Fighter Airplane Was One Of The Most Easy-To-Handle Fighters With A High Speed & Exceptionally Good Maneuvering Ability. Aviator LA-5 Inherited Simplicity & Strictness Of The Aviation Watches Of That Epoch. This Simplicity Makes This Line Of The Watches Unique & Original.