Comfortable convenience and down-to-earth utility — a mid-sized digital watch with 36.6 mm case that delivers a comfortable fit even on slimmer wrists. Equipped with fully automatic LED light and a dedicated light button on the front for even more practical functionality. The band is made of bio-based resin, a material expected to reduce environmental impact. Case / bezel material: Resin Bio-based resin band Resin Glass Spherical Glass 50-meter water resistance LED light (auto light, afterglow) LED:Amber Dual time 1/100-second stopwatch Measuring capacity: 00'00''00~59'59''99 (for the first 60 minutes) 1:00'00~23:59'59 (after 60 minutes) Measuring unit: 1/100 second (for the first 60 minutes) 1 second (after 60 minutes) Measuring modes: Elapsed time, split time Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 minute to 24 hours (1-second increments, 1-minute increments and 1-hour increments) Other: Auto-repeat Daily alarm Hourly time signal Full auto-calendar (to year 2099) 12/24-hour format Regular timekeeping: Hour, minute, second, am/pm, month, date, day Accuracy: ±30 seconds per month Approx. battery life: 3 years on CR1616 Size of case : 43 × 36.6 × 10.9 mm Total weight : 27g