Casio - GWG-B1000-1A4JF - Men - 2025+

【GWG-B1000-1A4JF】
From G-SHOCK, which has pursued toughness since its birth in 1983, comes the MASTER OF G MUDMASTER FLAGSHIP model, achieving high durability and wearability with a robust exterior made of metal parts.

This GWG-B1000 model features a carbon core guard case structure, fusing a carbon fiber reinforced resin case*1 with metal materials produced using high-precision forging technology. In terms of functionality, it is equipped with radio-controlled solar power and a triple sensor, allowing it to acquire direction, barometric pressure/altitude, and temperature information. High visibility and time readability are ensured by double LED lights and sapphire glass.

It also features a location indicator function that points to the direction of locations recorded in the app or set in the app*2 by operating the watch.

Basic Information
Case Size (L × W × H):58.7 × 52.1 × 16.2 mm
Weight:114 g
Case and Bezel Material
Resin Band (Biomass plastics)
Shock Resistant:Vibration Resistant
Mud Resistant
Carbon Core Guard structure
Water Resistance
20-bar water resistance
Time Adjustment
Radio-controlled Watch; Multi Band 6
Bluetooth: Connects to a smartphone and automatically adjusts the time
Power Supply and Battery Life
Tough Solar (Solar powered)
Sensor Feature
Compass function: 16 directions / angle (0 to 359°), continuous direction measurement (60 seconds), north point indicator, bearing memory function, automatic horizontal correction, magnetic declination correction, direction calibration
Altimeter / Relative altimeter (measurement range: -700 to 10,000 m / 1 m units), altitude memory (up to 30 manual records of date, time, and altitude; auto log data: high/low altitude, auto cumulative ascent/descent memory), altitude tendency graph, altitude differential indicator (±100 m / ±1,000 m), measurement interval setting (every 5 seconds / 2 minutes)
*1 second for the first 3 minutes only
Barometer (measurement range: 260 to 1,100 hPa), barometric pressure tendency graph (past 20 hours), barometric pressure differential indicator (±10 hPa), barometric pressure tendency information alarm (notifies with an arrow and sound when characteristic pressure changes occur) *Barometric pressure tendency graph can be changed to measure every 2 minutes (displays the past 20 minutes).
Thermometer (measurement range: -10 to 60 °C, 0.1 °C units)

Mobile Link / App Connectivity Features
Mobile Link Feature
Mobile Link (Wireless linking using Bluetooth)

App
CASIO WATCHES Support
App Connectivity Feature
Auto time adjustment
Easy watch setting
Approximately 300 world time cities
App Information
Time & place
Mission log
Location indicator
Location memory
Mode customization
Auto altitude correction
Phone finder

Exterior
Glass:Spherical Glass with Inner Anti-reflective Coating Sapphire Crystal
Crown:Screw Lock Crown
Surface Treatment
DLC Coating (Stainless steel part)
Pink Gold IP (Bezel part)
Compatible Band Size
145 to 215 mm
Other
Neobrite

Watch Features
World Time
World time: 55 cities (38 time zones, daylight saving on/off) + UTC (Coordinated Universal Time) time display, home city/world time city swapping, one-touch UTC code access
Sunrise/Sunset Display
Sunrise, sunset time display
Stopwatch
1/100-second stopwatch (Measuring capacity: 23:59'59.99''; Measuring modes: Elapsed time, split time, 1st-2nd place times)
Timer
Countdown timer (Measuring unit: 1 second, Countdown range: 60 minutes, Countdown start time setting range: 1 minute to 60 minutes)
Alarm/Hourly Time Signal
5 daily alarms, Hourly time signal
Light
Double LED light:
LED light for the face (Full auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow),
LED backlight for the digital display (Full auto LED light, Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
Light Color
LED: White
Calendar
Full auto-calendar (to year 2099)
Mute Feature
Button operation tone on/off
Hand Home Position Correction
The auto hand home position correction
Power Saving Feature
Power Saving (display goes blank and hands stop to save power when the watch is left in the dark)
Battery Display/Alert
Battery level indicator
Run Time
Approx. battery operating time:
6 months on rechargeable battery (operation period with normal use without exposure to light after charge)
24 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
Accuracy
Accuracy: ±15 seconds per month (with no signal calibration and mobile link function)
Other Features
12/24-hour format
Hand shift feature (manual or auto (during altitude, barometric pressure, and temperature measurement))
Time Adjustment Details
Home city (cities with reception function) / Received radio wave
Tokyo / Japanese radio signals JJY40・JJY60
(Honolulu), (Anchorage), Los Angeles, Denver, Chicago, New York / US radio signal WWVB
London, Paris, Athens / UK radio signal MSF・German radio signal DCF77
Hong Kong / Chinese radio signal BPC
*Cities in parentheses may receive signals if conditions are good.
Time calibration signal reception: Auto receive up to six times a day (remaining auto receives canceled as soon as one is successful; Chinese calibration signal up to 5 times a day) / Manual receive,
Received radio wave: JJY, Frequency: 40kHz / 60kHz (Fukushima / Kyushu station compatible model)
Received radio wave: WWVB, Frequency: 60kHz
Received radio wave: MSF / DCF77, Frequency: 60kHz / 77.5kHz
Received radio wave: BPC, Frequency: 68.5kHz
*When the home time is set to a city where reception is possible, the station corresponding to the city is received. The time difference is set according to the selected city.

"IMPORTANT"
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We cannot be held responsible for any expenses incurred for importing items into the purchaser's country of residence.
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