G-Shock Mudmaster compared

G-Shock Mudmaster watches compared side by side: size, weight, power, sensors and colourways, with a source for every figure.

50 variants across 10 families

Casio

Solar, radio sync, Triple Sensor and Bluetooth together

G-Shock Mudmaster GWG-B1000

  • Best overall
Current

Overall score8.9 out of 10,Top of the range

How we score

Launched 2023RRP from £699

Size and weight

70 mmside profile15 mm
Case size
length 58.7 mm, width 52.1 mm, height 16.2 mm
Weight
114 g

Power and timekeeping

Solar charging
Yes
Radio time sync (Multi-Band 6)
Yes

Connections and navigation

Bluetooth
Yes
Phone app features
Auto time adjustment, location indicator, mission log, TIME & PLACE, auto altitude calibration, phone finder, about 300 world time cities
Navigation to a set point
Uses the phone's location

Sensors

Digital compass
Yes
Altimeter and barometer
Yes
Thermometer
Yes
Step counter
No

Build

Analogue hands
Yes
Sapphire crystal
Yes
Vibration resistant (as listed by Casio)
Yes
Carbon Core Guard case
Yes
Water resistance depth
200 m
Materials
Carbon fibre-reinforced bio-based resin case, stainless steel bezel, bio-based resin band

7 variants

  • GWG-B1000-1ABlackUK code GWG-B1000-1AER
  • GWG-B1000-1A4Black, burgundy bandNot sold in the UK
  • GWG-B1000-3AGreenUK code GWG-B1000-3AER
  • GWG-B1000EC-1AEmergency ColorsUK code GWG-B1000EC-1AER
    Edition
    Emergency Colors (2024)
  • GWG-B1000TLC-1AToyota Land Cruiser
    Edition
    Toyota Land Cruiser limited edition (2026)
  • GWG-B1000MG-1A9Magma
    Edition
    Magma limited edition (2026)
  • GWG-B1000-1A3Black, olive green band
    Edition
    Japan release (September 2026)
    Not sold in the UK

Casio

GWG-2000

Carbon Core Guard update of the GWG-1000

G-Shock Mudmaster GWG-2000

CurrentNot sold in the UK

Overall score6.5 out of 10,Top of the range

How we score

Launched 2021

Size and weight

70 mmside profile15 mm
Case size
length 61.2 mm, width 54.4 mm, height 16.1 mm
Weight
106 g

Power and timekeeping

Solar charging
Yes
Radio time sync (Multi-Band 6)
Yes

Connections and navigation

Bluetooth
No
Navigation to a set point
No

Sensors

Digital compass
Yes
Altimeter and barometer
Yes
Thermometer
Yes
Step counter
No

Build

Analogue hands
Yes
Sapphire crystal
Yes
Vibration resistant (as listed by Casio)
No
Carbon Core Guard case
Yes
Water resistance depth
200 m
Materials
Carbon fibre-reinforced resin case, forged carbon and stainless steel bezel, resin band

5 variants

  • GWG-2000-1A1Carbon black
  • GWG-2000-1A3Green
  • GWG-2000-1A5Beige
  • GWG-2000TLC-1AToyota Land Cruiser
    Edition
    Toyota Land Cruiser collaboration (2022)
  • GWG-2000CR-1ACracked Mudmaster
    Edition
    Limited edition

Casio

GWG-2040FR

40th anniversary Flare Red edition of the GWG-2000

G-Shock Mudmaster GWG-2040FR

CurrentNot sold in the UK

Overall score6.4 out of 10,Mid-range

How we score

Launched November 2022

Size and weight

70 mmside profile15 mm
Case size
length 61.2 mm, width 54.4 mm, height 16.1 mm
Weight
112 g

Power and timekeeping

Solar charging
Yes
Radio time sync (Multi-Band 6)
Yes

Connections and navigation

Bluetooth
No
Navigation to a set point
No

Sensors

Digital compass
Yes
Altimeter and barometer
Yes
Thermometer
Yes
Step counter
No

Build

Analogue hands
Yes
Sapphire crystal
Yes
Vibration resistant (as listed by Casio)
No
Carbon Core Guard case
Yes
Water resistance depth
200 m
Materials
Carbon fibre-reinforced resin case, phos­phor­es­cent forged carbon and stainless steel bezel, resin band

1 variant

  • GWG-2040FR-1AFlare Red
    Edition
    G-Shock 40th anniversary limited edition

Casio

GWG-1000

The first Mudmaster, launched in 2015

G-Shock Mudmaster GWG-1000

CurrentNot sold in the UK

Overall score6.3 out of 10,Mid-range

How we score

Launched 2015

Bars, drawing and score: Black (standard model)

Size and weight

70 mmside profile15 mm
Case size
from length 56.7 mm, width 56.1 mm, height 18 mm, to length 59.5 mm, width 56.1 mm, height 18 mm
Weight
119 g

Power and timekeeping

Solar charging
Yes
Radio time sync (Multi-Band 6)
Yes

Connections and navigation

Bluetooth
No
Navigation to a set point
No

Sensors

Digital compass
Yes
Altimeter and barometer
Yes
Thermometer
Yes
Step counter
No

Build

Analogue hands
Yes
Sapphire crystal
Yes
Vibration resistant (as listed by Casio)
Yes
Carbon Core Guard case
No
Water resistance depth
200 m
Materials
Resin case, resin and stainless steel bezel, resin band

9 variants

  • GWG-1000-1ABlackStandard model
    Case size
    length 56.7 mm, width 56.1 mm, height 18 mm
  • GWG-1000-1A1Blacked-out
    Case size
    length 56.7 mm, width 56.1 mm, height 18 mm
  • GWG-1000-1A3Black, olive band
    Case size
    length 56.7 mm, width 56.1 mm, height 18 mm
  • GWG-1000-1A9Black, yellow band
    Case size
    length 56.7 mm, width 56.1 mm, height 18 mm
  • GWG-1000GB-1ABlack and gold
    Case size
    length 56.7 mm, width 56.1 mm, height 18 mm
  • GWG-1000RD-4ARescue Red
    Case size
    length 56.7 mm, width 56.1 mm, height 18 mm
  • GWG-1000DC-1A5Desert camouflage
    Case size
    length 56.7 mm, width 56.1 mm, height 18 mm
  • GWG-1000MH-1AMaharishi
    Edition
    Maharishi collaboration
    Case size
    length 56.7 mm, width 56.1 mm, height 18 mm
  • GWG-1000WLP-1ALeopard print
    Edition
    Leopard-print edition
    Case size
    length 59.5 mm, width 56.1 mm, height 18 mm

Casio

The first Bluetooth Mudmaster, battery powered

G-Shock Mudmaster GG-B100

  • Best value (based on RRP)
Current

Overall score5.5 out of 10,Mid-range

How we score

Launched 2019RRP £349

Bars, drawing and score: Black (standard model)

Size and weight

70 mmside profile15 mm
Case size
length 55.4 mm, width 51.3 mm, height 19.4 mm
Weight
92 g

Power and timekeeping

Solar charging
No
Radio time sync (Multi-Band 6)
No

Connections and navigation

Bluetooth
Yes
Phone app features
Auto time adjustment, location indicator back to a recorded spot, mission log, step count data transfer, auto altitude calibration, phone finder, about 300 world time cities
Navigation to a set point
Uses the phone's location

Sensors

Digital compass
Yes
Altimeter and barometer
Yes
Thermometer
Yes
Step counter
Yes

Build

Analogue hands
Yes
Sapphire crystal
No
Vibration resistant (as listed by Casio)
No
Carbon Core Guard case
Yes
Water resistance depth
200 m
Materials
Carbon fibre-reinforced resin case, carbon and resin bezel, resin band

8 variants

  • GG-B100-1ABlackStandard modelUK code GG-B100-1AER
    Weight
    92 g
  • GG-B100-1A3Black, olive bandUK code GG-B100-1A3ER
    Weight
    92 g
  • GG-B100-1A9Black, orange band
    Weight
    92 g
    Not sold in the UK
  • GG-B100-1BAll black
    Weight
    92 g
    Not sold in the UK
  • GG-B100-8ABlack and grey
    Weight
    92 g
    Not sold in the UK
  • GG-B100Y-1ABlack, yellow accentsUK code GG-B100Y-1AER
    Weight
    92 g
  • GG-B100BA-1ABritish Army
    Edition
    British Army collaboration
    Weight
    92 g
    Not sold in the UK
  • GG-B100BTN-1ABurton
    Edition
    Burton collaboration
    Weight
    97 g
    Not sold in the UK

Casio

GG-B100 update with a location indicator set from the app

G-Shock Mudmaster GG-B100X

  • Best value (based on RRP)
Current

Overall score5.5 out of 10,Mid-range

How we score

Launched 2026RRP £349

Size and weight

70 mmside profile15 mm
Case size
length 55.4 mm, width 51.3 mm, height 19.4 mm
Weight
93 g

Power and timekeeping

Solar charging
No
Radio time sync (Multi-Band 6)
No

Connections and navigation

Bluetooth
Yes
Phone app features
Auto time adjustment, location indicator, mission log, step count data transfer, auto altitude calibration, phone finder, about 300 world time cities
Navigation to a set point
Uses the phone's location

Sensors

Digital compass
Yes
Altimeter and barometer
Yes
Thermometer
Yes
Step counter
Yes

Build

Analogue hands
Yes
Sapphire crystal
No
Vibration resistant (as listed by Casio)
No
Carbon Core Guard case
Yes
Water resistance depth
200 m
Materials
Carbon fibre-reinforced bio-based resin case, carbon fibre bezel, bio-based resin band

3 variants

  • GG-B100X-1ABlackUK code GG-B100X-1AER
  • GG-B100X-1A3Black, olive bandUK code GG-B100X-1A3ER
  • GG-B100X-1A9Black, orange bandUK code GG-B100X-1A9ER

Casio

GG-B100X with a stainless steel front bezel

G-Shock Mudmaster GG-B100XM

Current

Overall score5.3 out of 10,Mid-range

How we score

Launched 2026RRP from £365

Size and weight

70 mmside profile15 mm
Case size
length 55.4 mm, width 51.3 mm, height 19.4 mm
Weight
104 g

Power and timekeeping

Solar charging
No
Radio time sync (Multi-Band 6)
No

Connections and navigation

Bluetooth
Yes
Phone app features
Auto time adjustment, location indicator, mission log, step count data transfer, auto altitude calibration, phone finder, about 300 world time cities
Navigation to a set point
Uses the phone's location

Sensors

Digital compass
Yes
Altimeter and barometer
Yes
Thermometer
Yes
Step counter
Yes

Build

Analogue hands
Yes
Sapphire crystal
No
Vibration resistant (as listed by Casio)
No
Carbon Core Guard case
Yes
Water resistance depth
200 m
Materials
Carbon fibre-reinforced bio-based resin case, stainless steel front bezel, bio-based resin band

3 variants

  • GG-B100XM-1ABlack, steel bezelUK code GG-B100XM-1AER
  • GG-B100XMB-1ABlack, black steel bezelUK code GG-B100XMB-1AER
  • GG-B100XMH-5ABrown and goldUK code GG-B100XMH-5AER
    Edition
    Master of Horizon Gold series (2026)

Casio

Smaller solar Mudmaster with radio sync, no sensors

G-Shock Mudmaster GWG-100

  • Lightest
Current

Overall score3.1 out of 10,Entry

How we score

Launched 2017RRP £299

Size and weight

70 mmside profile15 mm
Case size
length 56.2 mm, width 54.9 mm, height 17.3 mm
Weight
88 g

Power and timekeeping

Solar charging
Yes
Radio time sync (Multi-Band 6)
Yes

Connections and navigation

Bluetooth
No
Navigation to a set point
No

Sensors

Digital compass
No
Altimeter and barometer
No
Thermometer
No
Step counter
No

Build

Analogue hands
Yes
Sapphire crystal
No
Vibration resistant (as listed by Casio)
No
Carbon Core Guard case
No
Water resistance depth
200 m
Materials
Resin case, resin and stainless steel bezel, resin band

4 variants

  • GWG-100-1ABlackNot sold in the UK
  • GWG-100-1A3Black, olive bandUK code GWG-100-1A3ER
  • GWG-100-1A8GreyNot sold in the UK
  • GWG-100GB-1ABlack and goldNot sold in the UK

Casio

GSG-100

International GWG-100 with solar but no radio sync

G-Shock Mudmaster GSG-100

CurrentNot sold in the UK

Overall score1.9 out of 10,Entry

How we score

Launched 2017

Size and weight

70 mmside profile15 mm
Case size
length 56.2 mm, width 54.9 mm, height 17.3 mm
Weight
88 g

Power and timekeeping

Solar charging
Yes
Radio time sync (Multi-Band 6)
No

Connections and navigation

Bluetooth
No
Navigation to a set point
No

Sensors

Digital compass
No
Altimeter and barometer
No
Thermometer
No
Step counter
No

Build

Analogue hands
Yes
Sapphire crystal
No
Vibration resistant (as listed by Casio)
No
Carbon Core Guard case
No
Water resistance depth
200 m
Materials
Resin case, resin and stainless steel bezel, resin band

1 variant

  • GSG-100-1A8Grey

Casio

GG-1000

Smaller battery Mudmaster with compass and thermometer

G-Shock Mudmaster GG-1000

CurrentNot sold in the UK

Overall score1.8 out of 10,Entry

How we score

Launched 2016

Size and weight

70 mmside profile15 mm
Case size
length 56.2 mm, width 55.3 mm, height 17.3 mm
Weight
94 g

Power and timekeeping

Solar charging
No
Radio time sync (Multi-Band 6)
No

Connections and navigation

Bluetooth
No
Navigation to a set point
No

Sensors

Digital compass
Yes
Altimeter and barometer
No
Thermometer
Yes
Step counter
No

Build

Analogue hands
Yes
Sapphire crystal
No
Vibration resistant (as listed by Casio)
No
Carbon Core Guard case
No
Water resistance depth
200 m
Materials
Resin case, resin and stainless steel bezel, resin band

9 variants

  • GG-1000-1ABlack
  • GG-1000-1A3Black, olive band
  • GG-1000-1A5Black, beige band
  • GG-1000-1A8Black and grey, blue accents
  • GG-1000GB-1ABlack and gold
  • GG-1000GB-4ABlack and gold, red band
  • GG-1000RG-1ABlack, rose gold accents
  • GG-1000BTN-1ABurton
    Edition
    Burton collaboration (2018)
  • GG-1000TLC-1AToyota Land Cruiser
    Edition
    Toyota Land Cruiser collaboration (2018)

Buying guide

What the Mudmaster specifications mean: case size and weight, solar power and radio time sync, Bluetooth, navigation, sensors and materials.

How to choose a G-Shock Mudmaster 

Last updated

Specifications last checked on .

Notes

Case size is the length from 12 to 6 o'clock including the lugs, the width across the case and the thickness. The drawings show each case to scale, seen from above with its side profile; outlines are simplified shapes, not exact silhouettes. Where a family's models differ in size or weight, the family shows the range across the models sold here (all of its models when none is), each model shows its own figures, and the drawing shows the standard model.

Status follows Casio's listings in every region: Current models are listed by Casio, and Upcoming models are announced but not yet on sale. Discontinued: Casio no longer lists the model. Models Casio still makes but doesn't sell here are marked Not sold in the UK.

Prices are recommended retail prices (RRP) in pounds sterling, not shop prices.

Sources

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