G-Shock DW6900MS-1 Series watch by Casio. Shock resistant. 200 meter water resistant. EL backlight with afterglow. Flash alert. Flashes with buzzer 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) and 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 mode: 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 2039). 12/24 hour formats. Accuracy: +/- 15 seconds per month. Battery CR2016. Approx battery life: 2 years. Module 1289. Imported.G-Shock