Casio Men's G-Shock GW6900-1 Tough Solar Sport Watch Shock-resistant watch featuring LED backlight with day, date, and time display Additional features include multi-band six atomic timekeeping, world time, daily alarm with snooze, 12 and 24-hour formats, and solar power battery 41 mm stainless steel case with mineral dial window.Size of case / total weight 53.2 x 50.0 x 17.7mm / 63g Accuracy: +/- 15 seconds per month