Casio - G-Shock - Black Digital Military - DW6900MS-1 - The new military inspired series represents some of the very best of the tough and durable designs from the G-Shock ORIGIN and MASTER OF G line-ups. These models feature a stealth, matte black finish to the band and case including the watch buttons that are ion plated to a black finish. The ORIGIN DW5600MS-1 & DW6900MS-1 and MUDMAN G9000MS-1 are equipped with light-on-dark digital display to match the overall color theme. For Non-Stop performance the FROGMAN GW200MS-1 is equipped with Tough Solar Power. 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 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 - Size of case / total weight - DW6900MS 53.2 x 50.0 x 16.3mm / 67g"