Features: case/bezel material: resin resin strap mineral crystal digital display shock resistant electro luminescent backlight flash alert chronograph function 1/100-second stopwatch countdown timer multi-function alarm hourly time signal full auto-calendar (to year 2039) 12/24-hour format regular timekeeping accuracy: ±15 seconds per month day display buckle clasp 200m water resistance approximate size of case: 53.2 x 50 x 16.3mm