Features: case/bezel material: resin/aluminum resin strap quartz movement mineral crystal black dial analog digital display shock resistant led light afterglow illumination world time 29 time zones (27 cities + coordinated greenwich mean time) 1/100-second stopwatch countdown timer 5 daily alarms hourly time signal full auto-calendar (to year 2039) 12/24-hour format regular timekeeping luminous hands and markers accuracy: ±15 seconds per month day display solid case back buckle clasp 200m water resistance approximate size of case: 52 x 46.4 x 14.9mm