Rangeman Full Black GW-9400-1BER Watch

The Watch

Casio presents this exceptional timepiece engineered for the harshest environments. Mud, shocks, dirt, extreme temperatures — nothing slows it down. The Rangeman Full Black GW-9400-1BER is the go-to choice for military personnel and extreme sports enthusiasts. Its resin case features a shock-resistant construction that shields the watch from vibrations and impacts. It measures 53.5mm wide and 55.2mm tall, with a thickness of 18.2mm. It weighs 80 grams. This watch is designed for men who love bold, imposing timepieces. It features six push buttons to activate the watch's various functions. To keep the dial looking sharp for years to come, it is fitted with a mineral crystal that protects against scratches and impacts. The screw-back case ensures excellent water resistance of 20 atmospheres. Don't think twice — make it your next adventure companion!

The Dial

This dial is packed with features to keep up with your every need. Its digital display comes equipped with a Super Full Auto LED backlight, so you can read the time even in the darkest conditions. The dial shows the day of the week, the time, a daily alarm, a barometer, a thermometer, a compass, and all the other functions the watch has to offer. Navigating through the options is easy — just use the push buttons around the dial. Each button's function is clearly labeled right next to it.

The Functions

• Super Full Auto LED Backlight: When the light dims, the watch face lights up with a simple flick of the wrist.
• Automatic Time Sync via Radio Signal (EU, USA, JPN, CHN): Whether you're in Europe, North America, Japan, across Canada, Central America, or China — once the watch is set to the local time zone, it picks up the corresponding radio signal and always displays the exact date and time. In many countries, it automatically switches between daylight saving time and standard time.
• Solar Power: Solar cells provide autonomous, eco-friendly energy. Any surplus solar energy is stored in a rechargeable accumulator.
• Barometer (260 / 1,100 hPa): A dedicated sensor measures atmospheric pressure (measurement range: 260 / 1,100 hPa) and displays it on the screen as a symbol, so you can stay ahead of changing weather conditions.
• Thermometer (-10°C / +60°C): A sensor measures the ambient temperature and displays it in degrees Celsius (-10°C / +60°C).
• Compass: A built-in directional sensor detects magnetic north.
• Altimeter 10,000 m: A pressure sensor detects changes in atmospheric pressure and converts the result into an altitude reading of up to 10,000 m.
• World Time Function: The world time function displays the current time across 29 time zones and major cities around the globe.
• Stopwatch Function - 1/100 sec - 1,000 h: Measures elapsed time accurately with a single press of a button. The fraction indicates the unit of measurement, while the number indicates the maximum time that can be timed.
• 5 Daily Alarms: An audible alarm reminds you of your commitments every day at the programmed time. This model features five independent alarms, giving you the flexibility to keep track of all your important appointments.
• Snooze Function: Every time you dismiss the alarm, it goes off again a few minutes later.
• Sunrise and Sunset Times: Once your geographic location is entered, the watch can display sunrise and sunset times for any date.
• Altimeter Memory: Depending on the model, the watch can store up to 40 blocks of altitude data that can be reviewed at any time. Each data block includes the recorded altitude along with the date and time of the measurement. In addition to the recorded altitude, the altimeter also logs the maximum and minimum altitude for each measurement.
• Automatic Calendar: Once programmed, the automatic calendar always displays the correct date.
• 12/24-Hour Time Format: You can display the time in either 12-hour or 24-hour format.
• Countdown Timers - 1/1 min - 24 hours: For those who love precision: countdown timers alert you to important or recurring events with an audible signal at the programmed date and time. The timer can be set in minutes, up to 24 hours in advance — perfect for daily medication reminders or recurring training sessions.
• Battery Level Indicator: Displays the current battery level.
• Button Beep On/Off: The button beep can be turned off using the mode button. Once disabled, no sound will be emitted when switching between functions. However, any programmed alarms or countdown timers remain active even after the button beep is turned off.
• Mud-Resistant Case: The watch case is hermetically sealed, keeping dirt and dust out completely.

The Strap

Rounding out this rugged, extraordinarily tough watch, the case comes fitted with a black resin strap. Renowned for its extreme durability and flexibility, synthetic resin is an ideal material for watch straps. With a sporty look, it is water-resistant and ready to take on any adventure by your side. It fastens with a deployment clasp for easy and quick on and off.

Water Resistance

With 200-meter water resistance, or 20 ATM in proper watchmaking terms, this watch is built for recreational diving. It handles showers, baths, and casual swims in the sea or pool with ease. That said, for professional scuba diving with tanks, our Ocarat watch team has hand-picked a selection of 30 ATM models available in the catalog with a quick search on our site. One last reminder before we let you go: do not operate the push buttons or crown while in the water!