Features: case/bezel material: resin resin strap quartz movement mineral crystal neobrite analog digital display shock resistant neon illuminator(black light led) world time (27 cities) 1-second stopwatch countdown timer 5 daily alarms hourly time signal full auto-calendar (to year 2039) 12/24-hour format regular timekeeping accuracy: ±30 seconds per month day and date display solid case back buckle clasp 100m water resistance approximate size of case: 45.1 × 41 × 13.3mm