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Casio Men's GW-9400J-1JF G-Shock Digital G Rangeman Series Multiband 6, Black Watch
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Items Description
The Casio GW-9400J-1JF G-Shock Rangeman is a digital sports watch built for outdoor professionals, tactical users, and adventurers who need reliable environmental data and timekeeping in remote locations. As part of the Master of G series, it brings Casio's Triple Sensor technology into a shock-resistant G-Shock platform, combining altimeter, barometer, and compass readings with solar-assisted power and radio-controlled timekeeping.
The Rangeman GW-9400 measures 55.2 x 53.5 x 18.2 mm and weighs 93 grams, with a black resin case and band that resist impact and daily wear. Its 200-meter water resistance covers swimming, rain, and heavy splashes, while the digital display presents time, sensor data, and navigation readings on a single screen. The GW-9400J-1JF pairs Japan-market availability with the full Rangeman feature set, including Multiband 6 atomic timekeeping and Tough Solar charging.
Key Advantages of the Casio Men's GW-9400J-1JF G-Shock Digital G Rangeman Series Multiband 6, Black Watch
1. Triple Sensor Environmental Measurements
The GW-9400 integrates Casio's Triple Sensor system, providing three core environmental readings through dedicated side buttons for quick access during outdoor activity. Each sensor supports specific measurement ranges and memory functions that help hikers, climbers, and tactical users make informed decisions.
- Altimeter: Measures from -700 to 10,000 m (-2,300 to 32,800 ft) with 1 m resolution and altitude memory.
- Barometer: Tracks atmospheric pressure changes to support short-term weather prediction.
- Compass: Provides bearing readings with directional calibration for route-finding.
2. Multiband 6 Atomic Timekeeping
Multiband 6 receives time calibration signals from six transmission stations across Japan, China, the United States, the United Kingdom, and Germany. The watch automatically corrects the displayed time and date based on the strongest available signal, keeping accuracy consistent across travel between supported regions without manual adjustment.
3. Tough Solar Power Supply
The Rangeman uses Casio's Tough Solar system, charging its rechargeable battery from ambient light through the watch face. This reduces dependence on regular battery replacement and supports continued operation of sensors, alarms, and Multiband 6 reception. When fully charged, the watch can run for months in normal timekeeping mode without further light exposure.
4. Shock-Resistant Construction and 200-Meter Water Resistance
Casio builds the GW-9400 to withstand impact, vibration, and water exposure. The 55.2 x 53.5 x 18.2 mm case uses a reinforced resin structure with a mineral glass crystal and button guards to protect the sensor controls. A 200-meter water resistance rating covers swimming, snorkeling, and use in heavy rain.
- Shock Resistance: Designed to absorb drops and impacts on rock and hard surfaces.
- Water Resistance: Rated to 200 meters (20 bar) for water sports and daily exposure.
- Crystal: Mineral glass with recessed bezel for scratch and impact protection.
5. Outdoor Utility Functions
Beyond the Triple Sensor, the Rangeman includes a suite of tools for field use. Sunrise and sunset time display supports planning around daylight hours, while the world time function covers multiple cities and time zones. Alarm, stopwatch, countdown timer, and full auto-calendar functions cover day-to-day timekeeping needs.