Casio G-Shock GWF-A1000 Watches

Introducing the first analog models for the FROGMAN Series of MASTER OF G ISO 200 m diver-level water resistant watches.
Maintaining the asymmetrical face design that has been the iconic look of this series since its start in 1993, these new models show Home Time, Dual Time, tide information, and dive time measurement in analog format. Large, luminescent hour and minute hands improve readability, and the face is designed to provide intuitive indication of measurement information.

Important Information

GWF-A1000 Model Range *may be updated


The most distinctive specs of GWF-A1000 *Editorial
— ISO 200 meters Water Resistance
(good for swimming and professional diving)
— Analog Watch Display (The over-sized dimensional index and hour and minute hands offer improved readability. Three dual-coil motors enable the hour, minute and world time hands to move rapidly so the wearer can switch modes with no delay)
— Carbon Monocoque Case (single carbon Monocoque unit that protects the module from external shock and makes it possible to eliminate carbon guard parts from the buttons on the sides of the case)
— Tough Solar (CASIO’s original solar-charging system converts not only sunlight but also light from fluorescent lamps and other sources into power)
— Radio-controlled Watch; Multi band 6 (additional way for time sync. This watch receives time calibration radio signals that keep the displayed time accurate)
Fluoroelastomer Band (The fluoroelastomer material provides an excellent fit on the wrist with its soft feel, not to mention exceptional resistance to staining and hydrolysis)
Diving Mode (The hour and minute hands can be brought together as one at the start of a dive to indicate the diving time)
G-SHOCK Connected App (you may manage all watch settings through your phone)
Mobile link (Wireless linking using Bluetooth(R)) (for time sync with your phone data)
Tide graph (tide level for specific date and time)
Tide point setting (Some of the world’s major dive spots come pre-set and can be selected from a map or list)
Diving log (Timeline display of time, date and number of dives along with smartphone-logged dive location and smartphone-shot photos)


Official GWF-A1000 Video

Official Marketing Focus from Casio

In addition to great designs, these new models also incorporate advances in material, structure, and function. The monocoque structure of this model incorporates the case and back cover into a single unit. The carbon fiber-reinforced resin has a low water absorption coefficient and resists hydrolysis, which results in a higher level of water resistance and greater strength. This, along with the monocoque case, enables ISO 200 m diver-level water resistance.
The external structure that capitalizes on the high strength and lightweight characteristics of the material improves toughness and reduces weight by 22 grams compared with previous GWF-D1000 Series models.

Official GWF-A1000 Specs / Features *for base version GWF-A1000-1A

  • Case / bezel material: Carbon / Stainless steel
  • Resin Band
  • Neobrite
  • Spherical Glass
  • Screw Lock Crown
  • Carbon Core Guard structure
  • Magnetic Resistant
  • Shock Resistant
  • Sapphire Glass with non-reflective coating
  • Black ion plated case
  • ISO 200 meters Water Resistance
  • LED light (Super illuminator)
    Afterglow
  • Tough Solar (Solar powered)
  • Time calibration signal reception
    Auto receive up to six* times a day (remaining auto receives canceled as soon as one is successful)
    *5 times a day for the Chinese calibration signal
    Manual receive
    The latest signal reception results
  • 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
  • Diving mode
    Dive time: 1 second increments, up to 1:59’59
    Surface time measurement: up to 24 hours
    Log data: up to 30 records
  • Mobile link (Wireless linking using Bluetooth®)
  • The auto hand home position correction
  • Dual time
    27 time zones, Home time swapping, auto summer time (DST) switching
  • 1-second stopwatch
    Measuring capacity: 23:59’59
  • Countdown timer
    Measuring unit: 1 second
    Countdown range: 24 hours
    Countdown start time setting range: 1 minute to 24 hours (1-second increments)
  • Daily alarm
  • Power Saving (hands stop to save power when the watch is left in the dark)
  • Hand shift feature (Hands move out of the way to provide an unobstructed view of indial)
  • Full auto-calendar (to year 2099)
  • Date display
  • Day indicator
  • Regular timekeeping
    Analog: 3 hands (hour, minute (hand moves every 5 seconds), second), 3 dials (dual time hour and minute, dual time 24 hour, day)
    Accuracy: ±15 seconds per month (with no signal calibration and mobile link function)
  • Approx. battery operating time:
    5 months on rechargeable battery (operation period with normal use without exposure to light after charge)
    30 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
  • Size of case : 56.7×53.3×19.7mm
  • Total weight : 119g

Recent News about GWF-A1000 

All Casio GWF-A1000 News →


You ask, we answer…

What does Tough Solar in GWF-A1000 mean?

CASIO’s original solar-charging system converts not only sunlight but also light from fluorescent lamps and other sources into power.

What is Carbon Monocoque Case in GWF-A1000?

It’s a single carbon Monocoque unit that protects the module from external shock and makes it possible to eliminate carbon guard parts from the buttons on the sides of the case).

What does Fluoroelastomer Band in GWF-A1000 mean?

The fluoroelastomer material provides an excellent fit on the wrist with its soft feel, not to mention exceptional resistance to staining and hydrolysis.

How does Diving Mode in GWF-A1000 work?

The hour and minute hands can be brought together as one at the start of a dive to indicate the diving time.

Spread the love