Features: case / bezel material: resin resin strap quartz movement caliber: 3290 mineral crystal blue dial digital display chronograph function shock resistant electro-luminescent backlight afterglow world time 29 time zones (48 cities) 1/100-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 200m water resistance approximate size of case: 44.7 x 40 x 12.5mm