Product Details: Case / bezel material: Resin Resin Band Resin Glass 100-meter water resistance LED backlight (Super Illuminator) Afterglow Dual time Daily alarm Hourly time signal Vibe alert (daily alarm, hourly time signal, countdown timer time up, stopwatch auto start countdown)Full auto-calendar (to year 2099) 12/24-hour format Regular timekeeping: Hour, minute, second, pm, month, date, day Accuracy: �30 seconds per month Approx. battery life: 10 years on CR2032 Size of case : 51.4�47.1�16.1mm Total weight : 50g

Product Details: Case / bezel material: Resin Resin Band Resin Glass 100-meter water resistance LED backlight (Super Illuminator) Afterglow Dual time Daily alarm Hourly time signal Vibe alert (daily alarm, hourly time signal, countdown timer time up, stopwatch auto start countdown)Full auto-calendar (to year 2099) 12/24-hour format Regular timekeeping: Hour, minute, second, pm, month, date, day Accuracy: �30 seconds per month Approx. battery life: 10 years on CR2032 Size of case : 51.4�47.1�16.1mm Total weight : 50g