Description
![Casio G-Shock RANGEMAN Radio-Controlled Solar Watch GW-9400BJ-1JF Men's Black [Official Japanese Product]](https://toyotatabi.com/wp-content/uploads/2025/11/Casio-G-Shock-RANGEMAN-Radio-Controlled-Solar-Watch-GW-9400BJ-1JF-Mens-Black-Official-Japanese-Pr-200x300.jpg)
Casio G-Shock RANGEMAN Radio-Controlled Solar Watch GW-9400BJ-1JF Men’s Black [Official Japanese Product]
Product specifications
Watch Information
| brand | G-SHOCK |
|---|---|
| Model number | GW-9400BJ-1JF |
| Model number | GW-9400BJ-1JF |
| Release year | 2013 |
| Case Shape | Round Face |
| Windshield material | Glass |
| Display Type | digital |
| Clasp | buckle |
| Case material | resin |
| Case diameter/width | 5.4 centimeters |
| Case Thickness | 18.2 millimeters |
| Band material/type | Carbon fiber insert band, belt type |
| Band Size | Approximately 14.5~21.5cm |
| Bandwidth | 2.5 centimeters |
| Band Color | black |
| Dial color | black |
| Calendar function | Day Date |
| Other features | Solar radio clock, Compass, Barometer/Altimeter, Thermometer |
| Weight | 93 g |
| Movement | Solar-powered radio-controlled watch |
| Water pressure resistance | 200 m |
| Manufacturer’s warranty | 1-year warranty |
Product description
Brand Description: G-SHOCK pioneered a new concept of watch toughness. It all began with the passionate belief of its developers in creating a watch that would survive a drop, a seemingly foolhardy challenge that overturned conventional wisdom at the time. After over 200 prototypes and approximately two years of development, the shock-resistant structure was perfected. This marked the birth of the technology at the heart of toughness. Since then, G-SHOCK has continued to evolve endlessly. From structure to materials to functionality, the pursuit of even greater toughness continues. The G-SHOCK
Master of G series continues its relentless pursuit of toughness and pushes the limits. Introducing the Master of G “Rangeman,” designed for use in the hot, humid jungles and dense forests of some of the harshest environments on Earth. To ensure that rangers and rescue workers operating in extreme environments can quickly and reliably display the information they need to carry out their survival missions, this watch features a new toughness structure and is equipped with a triple sensor, a first for G-SHOCK (as of September 2013). A new toughness structure, the “Button Guard Cylinder Structure,” was developed specifically for the Master of G “Rangeman.” A unique cylindrical button guard reduces impacts on the large metal buttons, enabling smooth and accurate operation. The sensor buttons, which display frequently used information such as altitude, direction, and barometric pressure/temperature, feature a metal cylinder guard to absorb side impacts, prevent the intrusion of foreign objects, and enable smoother and more accurate button operation. The watch also pursues functionality, operability, and finish designed for specialists operating in harsh environments. A new function allows you to directly display the most recently used sensor mode, regardless of the alarm, timer, or other mode, by pressing the sensor button. Each mode also has three levels of audible alerts, allowing you to intuitively confirm which mode you activated when pressing the button. Furthermore, it features a direct time stamp function that allows you to easily memorize the time with a single push during missions or emergencies, as well as a stopwatch that can be quickly started with a single push. The watch features a carbon fiber insert band with excellent tensile strength, and metal parts for the buttons, side screws, and band ring, creating a durable yet edgy design. This Master of G Rangeman is tougher and more functionally advanced for extreme conditions. Features include: shock-resistant
construction
, 200-meter water resistance
, carbon fiber insert band
, Tough Solar (solar charging system),
and radio wave reception: automatic reception (up to 6 times per day) (China radio wave reception up to 5 times per day) or manual reception. Supported areas: Japan, North America, Europe, and China.
When the Home Time setting is set to a city that supports reception, the watch will receive the corresponding station. The time difference is determined by the selected city.
●Compass measurement function
・Measures 16 compass directions・Compass angle (0 to 359°)
・Continuous compass measurement (60 seconds)
・Graphical display of north, south, east and west
・Bearing memory (memorizes one graphic showing the compass angle and recorded direction)
・Magnetic declination correction function
・Compass correction function
●Barometric pressure measurement function
・Measurement range: 260 to 1,100 hPa
・Barometric pressure trend graph display (displays the past 42 hours)
・Barometric pressure difference graphic
・Barometric pressure trend information alarm (indicates significant changes in barometric pressure with an audible alarm and arrow)
・Altitude measurement function/Relative altimeter (Measurement range: -700 to 10,000 m)
・Altitude memory (Automatically records data: maximum altitude, minimum altitude, accumulated altitude ascent and descent), altitude difference graphic, altitude difference measurement (-3,000 to 3,000 m)
・Measurement interval setting function (every 5 seconds/2 minutes) *Every 1 second for the first 3 minutes only
●Temperature measurement function (Measurement range: -10 to 60°C)
●World time: Time display for 48 cities worldwide (31 time zones, daylight saving time setting function) + UTC (Coordinated Universal Time)
●Sunrise and sunset time display
●Manual memory function: Records up to 40 records of altitude, air pressure, temperature, direction, and time (time stamp function)
●Stopwatch (1/100 second, 1000 hour counter, with split)
●Timer (set unit: 1 minute, maximum set: 24 hours, measured in 1 second increments)
●5 time alarms (only 1 with snooze function) and time signal
●Battery indicator display
●Power saving function (display turns off after a certain period of time in dark places to save power)
●Full auto calendar
●12/24 hour display switching
●Operation sound ON/OFF switching function
●LED backlight (with full auto light, super illuminator, afterglow function, afterglow time switching (1.5 seconds / 3 seconds))
●Operating time from full charge without solar power generation: When using functions/approximately 8 months, when in power saving mode/approximately 23 months
*When radio wave reception is not performed, the watch will operate with normal quartz accuracy (average monthly difference of ±15 seconds).
![Casio G-Shock RANGEMAN Radio-Controlled Solar Watch GW-9400BJ-1JF Men's Black [Official Japanese Product]](https://toyotatabi.com/wp-content/uploads/2025/11/Casio-G-Shock-RANGEMAN-Radio-Controlled-Solar-Watch-GW-9400BJ-1JF-Mens-Black-Official-Japanese-Pr.jpg)



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