You can use this Casio chronograph for anything, anywhere. The added 24-hour clock, 60-second stopwatch and 30-minute timer are protected by a tough case and high-water resistance. This is a fine piece for sportswear and travelling and won't let you down. - 51.8 × 49.3 × 13mm Case Size- 50g Weight- Resin Band, Bezel and Case- 100 Meters Water Resistant - Approx. battery life: 3 years on SR920SW- Resin Glass/Spherical Glass- Stopwatch- Accuracy: ±20 seconds per month- Regular timekeeping:- Analog: 3 hands (hour, minute, second), 3 dials (stopwatch minutes, stopwatch seconds, 24-hour)- Date display