Features: resin case resin band quartz movement mineral glass el backlight with afterglow multi-function alarm countdown timer measuring unit: 1 second countdown range: 1 minute to 24 hours auto-repeat function 1/100 second digital stopwatch hourly time signal auto calendar accuracy: +/-15 seconds per month buckle clasp 100m water resistance approximate size of case: 47.5 x 45.0 x 13.5mm