Durable and easy to read, the Casio Tactical Tough Digital GD400 is a highly functional and versatile watch designed for the modern tactical operator. It features an LED backlight for reading in dark conditions, and allows you to select from 1.5 or 3 seconds of illumination. The watch is water-resistant up to 200 meters and shock-resistant, which means it can perform consistently even in the roughest conditions. A countdown timer, stopwatch and five daily alarms are included, with a flash/buzzer alert that works with each. This watch is compatible in 31 different time zones, and keeps the time in both 12 and 24-hour formats.

Features of Casio Tactical Tough Digital GD400

• Case dimensions: 55 mm x 49.7 mm x 16.6 mm
• Weight: 2.75 oz.
• Water resistant up to 200 m
• LED backlight (super illuminator)
• Shock-resistant
• Full auto calendar that is pre-programmed until the year 2099
• Flash alert with buzzer that sounds for the hourly time signal, alarms and the countdown timer time-up alarm
• Countdown timer measuring unit: 1/10 second
• 24-hour countdown range
• Countdown start time setting range from 1 second to 24 hours (available in 1-second, 1-minute and 1-hour increments)
• World time
• Multi time (4 different cities)
• Auto Light switch with selectable illumination duration (1.5 seconds or 3 seconds) and afterglow
• Compatible with 31 time zones (48 cities + UTC)
• Daylight savings mode
• City code display
• Home city / world time city swapping
• Five daily alarms (daily or one time)
• 1/100 second stopwatch with a measuring capacity of 23:59'59.99"
• Elapsed time, split time and 1st-2nd place time measuring modes
• On/off button operation tone
• Hourly time signal
• Accuracy of +/- 15 seconds per month
• Selectable flash alert and direct start from timekeeping mode
• Powered with a CR2032 battery
• Approximately 3 years of battery life
• Low battery warning
• Module 3434