G-SHOCK

GWGB1000-1A3

$1,599.00
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Professional gear built to challenge the limits of toughness, these MUDMASTER and FROGMAN timepieces from the MASTER OF G line feature tan accents inspired by tactical equipment. Stripped of unnecessary decoration, the restrained colour palette reinforces the line’s commitment to true utility.

The FROGMAN GWF-D1000BC uses tan accents to striking effect in an otherwise all-black design that evokes the functional beauty of professional gear. A DLC-coated bezel and black IP-treated front screws enhance the texture of the metal exterior, achieving a refined balance of quality and functionality. The watch also employs a composite band that combines metal and resin for both strength and light weight. The band is extendable in two increments, so it can even be worn over a wetsuit.

Every aspect is designed with actual field use in mind. From construction and functionality to design, the colour scheme inspired by tactical equipment reinforces the distinctive identity of the MASTER OF G line.

2 year warranty

Basic Information
  • Band
    Bio-based resin band
  • Case and bezel material
    Bio-based Resin / Stainless steel
  • Case size (L × W × H)
    58.7 × 52.1 × 16.2 mm
  • Construction
    Shock Resistant, Vibration resistant, Mud Resistant, Carbon Core Guard structure
  • Power supply and battery life
    Tough Solar (Solar powered)
  • Sensor feature
    Compass function:
    16 direction / direction angle (0 to 359°) measured, direction continuous measurement (60 seconds), north direction guideline function.
    Bearing memory function. Automatic horizontal, magnetic declination, and orientation correction function.
  • Time adjustment
    Radio-controlled Watch; Multi band 6, Bluetooth: Connects to a smartphone and automatically adjusts the time
  • Water resistance
    200-metre water resistance
  • Weight
    114 g

Exterior
  • Compatible band size
    145 to 215 mm
  • Crown
    Screw Lock Crown
  • Glass
    Sapphire crystal with anti-reflective coating
  • Other
    Neobrite
  • Surface treatment
    DLC-treated (stainless steel portion), Black ion plated bezel

Smartphone Link / App Connectivity Features
  • 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/Display switching customization, Auto altitude correction, Phone finder
  • Apps
    CASIO WATCHES
  • Smartphone link feature
    Mobile link (Wireless linking using Bluetooth®)

Features
  • Accuracy
    Accuracy: ±15 seconds per month (with no signal calibration and mobile link function)
  • Alarm / hourly time signal
    5 daily alarms
    Hourly time signal
  • Battery display alert
    Battery level indicator
  • Calendar
    Full auto-calendar (to year 2099)
  • Energy saving feature
    Power Saving (display goes blank and hands stop to save power when the watch is left in the dark)
  • Hand home position correction feature
    The auto hand home position correction
  • 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)
  • Mute feature
    Button operation tone on/off
  • Other features
    12/24-hour format
    Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents.)
    Regular timekeeping:
    Analog: 3 hands (hour, minute (hand moves every 10 seconds), second),
    2 dials
    Digital: Hour, minute, second, pm, month, date, day
  • 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)
  • Stopwatch
    1/100-second stopwatch
    Measuring capacity: 23:59'59.99''
    Measuring modes: Elapsed time, split time, 1st-2nd place times
  • Sunrise / sunset display
    Sunrise, sunset time display
    Sunrise time and sunset time for specific date
  • Time adjustment details
    Time Calibration Signals
    Station name: DCF77 (Mainflingen, Germany)
    Frequency: 77.5 kHz
    Station name: MSF (Anthorn, England)
    Frequency: 60.0 kHz
    Station name: WWVB (Fort Collins, United States)
    Frequency: 60.0 kHz
    Station name: JJY (Fukushima, Fukuoka/Saga, Japan)
    Frequency: 40.0 kHz (Fukushima) / 60.0 kHz (Fukuoka/Saga)
    Station name: BPC (Shangqiu City, Henan Province, China)
    Frequency: 68.5 kHz
  • Timer
    Countdown timer
    Measuring unit: 1 second
    Countdown range: 60 minutes
    Countdown start time setting range: 1 minute to 60 minutes (1-minute increments)
  • World time
    World time
    38 time zones (55 cities + coordinated universal time), daylight saving on/off, auto summer time (DST) switching, Home city/World time city swapping
User Manual – Module 5713

Shock, dust, mud, and vibration resistance: Tough structure designed to deliver mastery of the field

The watch employs a guard structure combining components made from different materials, including stainless steel and carbon fibre-reinforced resin. Sophisticated metalwork creates complex forms for components such as the bezel and the front button guard with impressive precision.

In addition, the case also features cylindrical stainless-steel components to guard the buttons, as well as gaskets on the button shafts and a screw-lock crown to prevent the intrusion of mud and dust. Also, the bottom and sides of the module incorporate αGEL to ensure vibration resistance.

* αGEL is a registered trademark of Taica Corporation.
* Image shows the GWG-B1000-1A.

Triple Sensor

Measures compass bearing, altitude/barometric pressure, and temperature. The seconds hand indicates north, while the indicator hand shows the recorded direction (bearing memory) and the direction to a point recorded in the app from the watch and/or a point manually set on the map within the app (Location Indicator).* These handy features help with checking the direction of a desired destination.

Solar-powered timekeeping with radio control and Bluetooth® connectivity

Smartphone Link and radio-wave time calibration deliver automatic time adjustment. Solar-power charging ensures stable operation of watch functions.

Super Illuminator

High-brightness full-auto double LED light improves watch readability in the dark.

Bio-based resin

Key resin components used in the bezel, case, and band are made with bio-based resin, a material expected to help reduce environmental impact.

* Image is included for illustrative purposes.

Sapphire crystal

Scratch-resistant, highly transparent, and treated with anti-reflective coating to deliver excellent clarity and readability.

Feature List

  • The national flag of Japan featuring a solid red circle centered on a white rectangular background with a black border.

    Made in Japan

  • Black icon of a watch hitting a flat surface with motion lines indicating a shock or impact.

    Shock resistant

  • Black silhouette icon of a rubber boot splashing into a puddle of mud or water on a white background.

    Resistant to mud

  • Black icon of a person snorkeling with the number 20, representing a 20-bar pressure rating for water resistance.

    20 bar water resistant

  • Minimalist black icon of a person walking next to a simple clock face, representing punctuality or time management.

    Keeps yourself in time

  • Black icon of a smartwatch charging via solar energy with a battery level indicator and sun rays.

    Stable solar power

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