Features: case/bezel material: resin resin strap quartz movement caliber: 5570 mineral crystal analog digital display neon illuminator afterglow neobrite shock resistant world time 29 time zones (27 cities) 1-second stopwatch countdown timer 5 daily alarms hourly time signal auto-calendar (to year 2039) 12/24 hour display accuracy: ±30 seconds per month solid case back buckle clasp 100m water resistance approximate size of case: 45.1 × 41 × 13mm