Casio Mens W-800H-1AVDF Dual Time Digital Watch Features: - Resin Glass 100-meter water resistance - Case/bezel material: Resin - Resin Band - LED backlight - Dual time - 1/100-second stopwatch - Measuring capacity: 23:59'59.99'' - Measuring modes: Elapsed time, split time, 1st-2nd place times - Multi-function alarm (One-time or 7-time snooze) - Hourly time signal - Full auto-calendar (to year 2099) - 12/24-hour format - Regular timekeeping: Hour, minutes, seconds, pm, year, month, date and day - Accuracy: +-30 seconds per month Specifications: - Approx. battery life: 10 years on CR2025 - Size of case: 44.2mm × 36.8mm × 13.4mm - Total weight: 37g