Technical specs of Baby-G BGA-200LP Case: Resin/Stainless steelss Accuracy per month: ±30 sec Battery Type: SR726Wx2 Battery Life: 3 YRS 1/100-second stopwatch Measuring capacity: 59’59.99″ Measuring modes: Elapsed time, split time, 1st-2nd place times 12/24-hour format Accuracy: ±30 seconds per month Approx. battery life 2 years on SR726W x 2 Full auto-calendar (to year 2099) Button operation tone on/off Countdown timer Measuring unit: 1 second Input range: 1 minute to 24 hours(1-minute increments and 1-hour increments) Daily alarm Hourly time signal LED light Afterglow Regular timekeeping Analog: 2 hands (Hour, minute (hand moves every 20 seconds)) Digital: Hour, minute, second, pm, day, day of the week Shock resistant World Time 29 time zones (48 cities + coordinated universal time), city code display, daylight saving on/off Size of case / total weight BGA-200LP…… 43.2 X 36.0 X 13.4 mm / 42 g