Features: case / bezel material: resin resin strap mineral crystal analog digital display shock resistant magnetic resistant led light world time 31 times zones (48 cities + utc) 1/100-second stopwatch countdown timer 5 daily alarms (with 1 snooze alarm) hourly time signal hand shift feature full auto-calendar (to year 2099) 12/24-hour format button operation tone on/off regular timekeeping stopwatch with target time alarm multi-functional retrograde hand and lcd accuracy: ±15 seconds per month luminous hands and markers day and date display solid case back buckle clasp 200m water resistance approximate case diameter: 57.6 × 48.9mm approximate case thickness: 17.1mm