"Stainless Steel Case and Bracelet Black Carbon Fiber Dial Alarm Chronograph Flight Computer 1/5th Second Stopwatch Records elapsed time up to 60 Minutes Split Time Measurement Bi-Directional Slide Rule Bezel Crown Protector Date Window at the 3 o'clock position with Magnifier Luminous Hands and Markers Water Resistant to 100 Meters (330 Feet) Hardlex Mineral Glass Crystal Battery Life Approximately 3 Years Rubber Strap features a Tang Buckle Clasp 45mm Case Width (Not including crown & protector) Approximately 1 3/4"""