Shock Resistant 200 Meter Water Resistant EL Backlight with Afterglow Flash Alert Flashes with buzzer that sounds for alarms, hourly time signal, countdown timer time-up alarm 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, 1st-2nd place times Countdown timer Measuring unit: 1 second Countdown range: 24 hours Countdown start time setting range: 1 second to 24 hours (1-second increments, 1-minute increments and 1-hour increments) Other: Auto-repeat Multi-function alarm Hourly time signal Full auto-calendar (pre-programmed until the year 2099) 12/24 hour formats Accuracy: +/- 15 seconds per month Battery: CR2016 Approx. battery life: 2 years Module: 3229 Band Length: 145mm - 205mm Size of case / total weight DW5600HR 48.9 x 42.8 x 13.4mm / 60g