Features: case / bezel material: resin resin band quartz movement resin glass led backlight dual time 1/100-second stopwatch multi-function alarm (one-time or 7-time snooze) hourly time signal full auto-calendar (to year 2099) regular timekeeping accuracy: ±30 seconds per month buckle clasp 100m water resistance approximate size of case: 44.2 × 36.8 × 13.4mm