The Basics

The Casio G-Shock Mudmaster is a dust- and mud-resistant multi-function watch. The case of the Mudmaster features an elaborate case construction allowing for its superior dust- and mud resistance. The crown is protected by a highly airtight screw-lock structure; the oversized buttons feature a cylindrical guard structure. The movement (‘module’) is protected by Alpha Gel to protect the watch from malfunctions or damage from vibrations, while washers securing the lug screws help prevent vibrations from loosening the strap. Its ‘Triple Sensor Technology’ allows it to measure directions, atmospheric pressure, altitude and temparature. When engaged, the digital compass indicates North through a hand, with bidrectional calibration and magnetic declination correction. The altimeter has a measuring range of -700 to 10.000 meters (-2.300 – 32.800 ft) using measuring units of 1 meter (5 ft). The barometer can be set to hPa or inHg and -amongst other things- alerts the user of significant changes in presure. Being a Casio G-Shock, these represent just a small amount of its functions. Reference GWG-1000GB-1A distinguishes itself by a black and gold color scheme. Total weight: 119 gram.

Brand: Casio
Family: Mudmaster
Reference: GWG-1000GB-1A
Name: G-Shock Mudmaster Triple Sensor Black / Gold
Produced: 2016
Limited: No

Below is a detailed look at Casio’s model GWG-1000GB-1A from Mudmaster watch family, including the price, case details and movement features.

Casio Mudmaster GWG-1000GB-1A

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The Details

Casio’s G-Shock Mudmaster Triple Sensor Black / Gold (GWG-1000GB-1A) was originally released in 2016. This watch features a quartz movement beating at a frequency of N/A ( N/A Hz) to provide a -hour power reserve when fully wound.

The Case

The stainless steel, resin case measures 56.1mm in diameter and roughly 18mm thick. The case is paired with a black color dial with sword-shaped hands, and a mixed hour markers and minute track, covered by a sapphire glass. Casio’s Mudmaster model GWG-1000GB-1A is water resistant up to 200 meters (656 ft). A solid caseback is over the back of the watch case.

Material: Stainless steel, Resin
Glass: Sapphire
Back: Solid
Diameter: 56.1mm
Height: 18mm
Lug Width: N/Amm
W/R: 200

Case Diameter

Case Thickness

Lug Width

Water Resistance

The Movement

The Mudmaster GWG-1000GB-1A movement is a powered by caliber 5463 made by Casio. The N/A-jewel quartz movement is mm in diameter. Its balance wheel oscillates at N/A semi-oscillations per hour or N/A Hz. This movement offers a -hour power reserve.

Type: Quartz
Brand: Casio
Caliber: 5463
Base: N/A
Display: Analog/ Digital
Diameter: mm
Jewels: N/A
Reserve: hours
Frequency: N/A
Time: World Time, Hours, Minutes, Seconds
Chronograph: Chronograph, Countdown
Additionals: Atomic Sync, Solar Charging, Altitude Indicator, Thermometer, Compass

The Price

How much does the Casio’s Mudmaster GWG-1000GB-1A cost? This watch was introduced in 2016 and has been in Casio’s collection for around . This watch is not a limited release. As with most luxury watches, the price of depends on the availability and demand.


For more information, visit Casio online.


  • Brand: Casio
  • Model: G-Shock Mudmaster Triple Sensor Black / Gold
  • Reference Number: GWG-1000GB-1A
  • Limited: No

Case & Dial:

  • Material: Stainless steel, Resin
  • Glass: Sapphire
  • Back: Solid
  • Diameter: 56.1
  • Thickness: 18
  • Lug Width: N/A
  • Dial Color: Black
  • Indexes: Mixed and Sword-shaped hands
  • Water Resistance: 200 meters


  • Winding: Quartz
  • Brand: Casio
  • Caliber: 5463
  • Display: Analog/ Digital
  • Diameter: mm
  • Jewels: N/A
  • Power Reserve: hours
  • Frequency: N/A
  • Functions: World Time, Hours, Minutes, Seconds

About Casio

Casio logo

In 1946, Tadao Kashio founded a company called Kashio Seisakujo, in Mitaka, Tokyo. One of his earliest innovations was some kind of ring that held a cigarette, allowing its wearer to smoke the cigarette until its very end – with Japan impoverished from WWII, this innovation was quite a success. Tadao Kashio, now joined by his brothers Toshio, Kazuo and Yukio, would go on and invest the proceeds … in the development of electronic calculators, of which the first prototype was shown by in 1954. In 1957 the first commercially available electronic calculator was introduced by the company, at which time Casio Computer Co., Ltd. is established.

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