G-Shock GWG-1000-1A1 is a basic black Mudmaster

G-Shock GWG-1000-1A1 Mudmaster

Newly listed by G-Shock Europe, the G-Shock Mudmaster GWG-1000-1A1ER is a nearly blacked out version of the popular Triple Sensor analog-digital model. Similar to the recent Gravitymaster GA-1100-1A1, the GWG-1000-1A1 does have faint bezel lettering paint as well as silver buttons. So perhaps it shouldn’t be considered a black-out model, but it is the most blacked out of any GWG-1000 model so far. The display consists of shades of gray and white, giving it a mostly monochrome appearance except for some light yellow (or maybe beige) coloring for the Mudmaster logo and city codes on the bezel.

The GWG-1000-1A1 features Tough Solar power, Multi-Band 6 radio time-syncing, and the Triple Sensor (altimeter/barometer, compass, thermometer), making it one of the more advanced and versatile G-Shock watches available. Other features included a protected button structure with mud and dust resistance, as well as vibration resistance. The GWG-1000 series is one of the most popular analog-digital models in the professional Master of G lineup, and is considered by many to be one of the toughest G-Shock watches.

Those who like the look of the GWG-1000-1A1 but would prefer a more affordable model without sensors should look into the solar-powered GWG-100-1A or GSG-100-1A which are also part of the Mudmaster family.

Several European online retailers have the GWG-1000-1A1ER listed for sale. We expect to see a wider release for the GWG-1000-1A1 so stay tuned for more details.

Update: Casio announced the GWG-1000-1A1 for an April 2018 release in Asia. The GWG1000-1A1 was also released in late April in North America.

GWG1000-1A1 on Amazon GWG1000-1A1 at Macys GWG-1000-1A1 on eBay

G-Shock GWG-1000-1A1 Band

(Disclosure: G-Central is an independently managed fan site and is not an official Casio G-Shock site. As an Amazon Associate and eBay Partner, G-Central earns from qualifying purchases.)


  1. Jon February 21, 2018
    • G-Central February 22, 2018
  2. Vincent Ng March 13, 2019
    • G-Central March 13, 2019
  3. Ryan March 16, 2019

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