Features: case/bezel material: resin/stainless steel cloth strap quartz movement caliber: 5497 mineral crystal blue dial analog digital display neobrite led light world time(29 cities) 1/100 second stopwatch countdown timer 5 daily alarms hourly time signal full auto calender(to year 2099) 12/24 hour format regular timekeeping accuracy: ±15 seconds per month day and date display screw down crown solid case back buckle clasp 100m water resistance approximate size of case: 51.6 × 51.5 × 13.4mm