Casio G-Shock Collector’s Guide: Master-of-G

Posted by Mike Johnson on in Articles, Collector's Guides

Share this Post

Introduction

Casio’s “Master of G” line of watches take classic G-Shock bullet-proof construction and combines that with specialized features designed for outdoor professionals.

This guide will cover the 6 most popular in-production model families:

When comparing G-shock “Master of G” watches, keep in mind that almost all of them have the basic Casio module functions: Alarms, Timer, Stopwatch, Shock Resistance, Water Resistance, Backlight Illumination and World Time.

All prices in this guide reflect real-time market prices, updated every 60 minutes.

Capabilities Chart

Size Solar Multiband6 Altimeter Barometer Depth Compass Thermometer Tidegraph Moonphase
Gulfmaster
GWN-Q1000 48.0 mm
GWN-1000 44.9 mm
GN-1000 50.5 mm
Rangeman
GW-9400 55.2 mm
Frogman
GWF-D1000 59.2 mm
GWF-1000 59.2 mm
GWF-8250 59.2 mm
Mudman
GW-9300 53 mm
G-9300 53 mm
G-9000 52 mm
Mudmaster
GG-1000 56.2 mm
GWG-1000 59.5 mm
Gravitymaster
GPW-1000 66 mm
GA-1100 50.8 mm
GW-A1100 48.4 mm

Casio Gulfmaster

Casio Gulfmaster

The Casio Gulfmaster is Casio’s seafaring entry in the legendary “Master of G” Series, focused on delivering features for those that work on boats. The Gulfmaster series currently has three modern variations: the Quad Sensor, the Triple Sensor and the Dual Sensor models.

All three variations utilize a combination of digital and analog displays, as well as Barometric and Temperature sensors and a module for displaying tide levels and moon phases.

 


Quad Sensor Models (GWN-Q1000 Series)

Size: 48.0mm × 57.3mm × 17.0 mm
Unique Features: Depth Gauge, Sapphire Crystal, Sunrise / Sunset Data
Module: 5477 (Operation Guide)
Capabilities: Solar Multiband6 Altimeter Barometer Depth Compass Thermometer Tidegraph Moonphase

Triple Sensor Models (GWN-1000 Series)

Size: 44.9mm × 55.8mm × 16.2mm
Unique Features: Pressure Tracking Bezel, Weather Trends, Triple Sensor
Module: 5371 (Operation Guide)
Capabilities: Solar Multiband 6 Altimeter Barometer Depth Compass Thermometer Tidegraph Moonphase

Twin Sensor Models (GN-1000 Series)

Size: 50.5mm × 53.4mm × 15.9mm
Unique Features: Twin Sensor, Analog Tidegraph Subdial, Worldtime Bezel
Module: 5443 (Operation Guide)
Capabilities: Solar Multiband 6 Altimeter Barometer Depth Compass Thermometer Tidegraph Moonphase

Casio Rangeman

Rangeman GW-9430EJThe Rangeman is Casio’s all-purpose watch for use on land, featuring helpful functions for navigating various terrain (Compass, Altimeter and Thermometer). The Rangeman has a single functional model that comes in many different color combinations – with some limited edition models commanding quite a premium price.

The Rangeman is a very popular model due to it’s relative affordability and versatility. Additionally, the metal buttons give it a unique look that makes them stand out from the other G-Shocks.

 


Standard Rangeman Models

Size: 55.2mm × 53.5mm × 18.2mm
Unique Features: Triple Sensor, Digital Compass, Metal Sensor Buttons
Module: 3410 (Operation Guide)
Capabilities: Solar Multiband 6 Altimeter Barometer Depth Compass Thermometer Tidegraph Moonphase

Limited Edition Rangeman Models

Size: 55.2mm × 53.5mm × 18.2mm
Unique Features: Triple Sensor, Digital Compass, Metal Sensor Buttons
Module: 3410 (Operation Guide)
Capabilities: Solar Multiband 6 Altimeter Barometer Depth Compass Thermometer Tidegraph Moonphase
  • Desert Camouflage

    Desert Camouflage
    GW-9400DCJ-1JF
    $373.47

  • Love The Sea and The Earth 2016

    Love The Sea and The Earth 2016
    GW-9402KJ-2JR
    $707.18

  • Man in Sunrise Purple

    Man in Sunrise Purple
    GW9400SRJ-4
    $350.00

  • Kobe City Fire Bureau

    Kobe City Fire Bureau
    GW-9400FBJ-4JR
    n/a

  • Love The Sea And The Earth 2015

    Love The Sea And The Earth 2015
    GW-9401KJ-3JR
    $1,013.29

  • Men In Camouflage

    Men In Camouflage
    GW-9400CMJ-3JR
    n/a

  • Red

    Red
    GW-9400RD-4
    n/a

  • Navy

    Navy
    GW-9400NVJ-2JF
    $443.50

  • Love the Sea And The Earth 2014

    Love the Sea And The Earth 2014
    GW-9400KJ-8JR
    n/a

  • Yellow Lightening

    Yellow Lightening
    GW-9430EJ-9JR
    n/a

Casio Frogman

Frogman 8250First released in 1993, The Frogman is one of Casio’s most successful and longest running digital watches. All G-Shock watches are water resistant up to 200M, but the Frogman takes it further with complete ISO 64250-compliance. With it’s multitude of dive specific features (like Dive logging, depth gauge, and rapid ascent alarms), this watch is one of the most capable dive watches you can buy.

For real divers, it’s makes a lot more sense to utilize a Frogman in-lieu of a mechanical dive watch. Outside of the bevy of useful dive features, it’s also a lot more durable than your traditional mechanical dive watch and won’t fail on you when in potentially life-threatening situations.


Depth Gauge Models (GWF-D1000 Series)

Size: 59.2mm × 53.3mm × 18mm
Unique Features: Dive Recording, Ascent Alarm, Asymmetrical Case, Depth Gauge, Timestamps
Module: 3184 (Operation Guide)
Capabilities: Solar Multiband 6 Altimeter Barometer Depth Compass Thermometer Tidegraph Moonphase
  • Black/JDM

    Black/JDM
    GWF-D1000-1
    $845.80

  • Black Blue

    Black Blue
    GWF-D1000B-1
    $749.00

  • Love The Sea And The Earth 2015

    Love The Sea And The Earth 2015
    GWF-D1000K-7JR
    n/a

Standard Frogman Models (GWF-1000 Models)

Size: 58.3mm × 52.8mm × 18mm
Unique Features: Dive Recording, Ascent Alarm, Asymmetrical Case, Depth Gauge
Module: 3184 (Operation Guide)
Capabilities: Solar Multiband 6 Altimeter Barometer Depth Compass Thermometer Tidegraph Moonphase
  • Black

    Black
    GWF1000-1
    $448.00

  • Men in Navy

    Men in Navy
    GWF-1000NV-2JF
    n/a

  • Men In Sunrise Purple

    Men In Sunrise Purple
    GWF-1000SR-4JF
    n/a

Limited Edition Frogman Models (GF-8250 Models)

Size: 59.2mm × 53.3mm × 18mm
Unique Features: Dive Recording, Ascent Alarm, Asymmetrical Case, Depth Gauge
Module: 3184 (Operation Guide)
Capabilities: Solar Multiband 6 Altimeter Barometer Depth Compass Thermometer Tidegraph Moonphase
  • Yellow

    Yellow
    GF-8250-9JF
    $980.00

  • Men in Military Colors

    Men in Military Colors
    GF-8250ER-2JF
    n/a

  • Rising Red

    Rising Red
    GF-8230A-4JR
    n/a

  • Lightening Yellow

    Lightening Yellow
    GF-8230E-9JR
    $2,142.75

  • Love The Sea And The Earth 2014

    Love The Sea And The Earth 2014
    GF-8250K-4JR
    $1,860.38

  • Men In Camouflage

    Men In Camouflage
    GF-8250CM-2JR
    $560.00

Casio Mudman

The Mudman is Casio’s all digital, entry level “Master of G” watch. Being the most affordable of the line, they represent a great value for collectors looking to acquire their first G-Shock. Known for it’s unique mud-resistant construction, the Mudman is a versatile watch for almost any outdoor use.

The current Mudman is available in three variations: The GW-9300 utilizes the twin sensor module and the Multiband 6 time sync, and the G-9300’s are practically identical (minus the Multiband feature). The G-9000 is a very basic watch, lacking almost all of the advanced features of the other models in the line.

 


Casio Mudman Multiband 6 (GW-9300 Series)

Size: 53.0mm × 50.8mm × 18.2 mm
Unique Features: Mud and Sand Resistant Gaskets
Module: 3261 (Operation Guide)
Capabilities: Solar Multiband 6 Altimeter Barometer Depth Compass Thermometer Tidegraph Moonphase
  • Men In Sunrise Purple

    Men In Sunrise Purple
    GW-9300SR-4JF
    $298.00

  • Men In Camouflage

    Men In Camouflage
    GW-9300CM-1JR
    $330.00

  • Men In Rescue Red

    Men In Rescue Red
    GW-9300CM-1JR
    n/a

  • Men In Navy

    Men In Navy
    GW-9300NV-2JF
    n/a

  • Initial Blue

    Initial Blue
    GW-9330B-1JR
    $1,082.00

  • Black And Gold JDM

    Black And Gold JDM
    GW-9300GB-1JF
    $253.00

  • Standard JDM

    Standard JDM
    GW-9300-1JF
    $230.05

  • Desert Camouflage

    Desert Camouflage
    GW-9300DC-1JF
    $377.97

Tough Solar Mudman (G-9300 Series)

Size: 53.5mm × 50.8mm × 18.2mm
Unique Features: Mud and Sand Resistant Gaskets
Module: 3261 (Operation Guide)
Capabilities: Solar Multiband 6 Altimeter Barometer Depth Compass Thermometer Tidegraph Moonphase

Basic Mudman (G-9000)

Size: 52mm x 46.3mm x 16.3mm
Unique Features: Triple Sensor, Sapphire Crystal, Mud and Sand Resistant Gaskets, Double LED light
Module: 3031 (Operation Guide)
Capabilities: Solar Multiband 6 Altimeter Barometer Depth Compass Thermometer Tidegraph Moonphase

Casio Mudmaster

Mudmaster GWC 1000The Mudmaster is a more advanced version of the Mudman, featuring a unique Analog/Digital display and some advanced design features: including a Sapphire Crystal and the usage of Alpha Gel to protect internal components.

The Mudmaster also has two variations: a Triple Sensor and Dual Sensor version. The Dual Sensor version is more affordable, but lacks many of the features of the other models.

 


Twin Sensor Mudmasters (GG-1000 Series)

Size: 56.2mm × 55.3mm × 17.3mm
Unique Features: Digital / Analog Display, Mud and Sand Resistant Gaskets
Module: 5476 (Operation Guide)
Capabilities: Solar Multiband 6 Altimeter Barometer Depth Compass Thermometer Tidegraph Moonphase
  • Black JDM

    Black JDM
    GG-1000-1A
    $263.86

  • Black / Khaki / Green

    Black / Khaki / Green
    GG-1000-1A3
    $268.00

  • Black / Khaki / Orange

    Black / Khaki / Orange
    GG-1000-1A5
    $316.80

  • Black / Gold

    Black / Gold
    GG-1000GB
    $183.99

Triple Sensor Mudmasters (GWG-1000 Series)

Size: 59.5mm x 56.1mm x 18.0mm
Unique Features: Triple Sensor, Sapphire Crystal, Mud and Sand Resistant Gaskets, Double LED light
Module: 5463 (Operation Guide)
Capabilities: Solar Multiband 6 Altimeter Barometer Depth Compass Thermometer Tidegraph Moonphase
  • Black / Gold

    Black / Gold
    GWG-1000-1A
    $568.13

  • Black / Olive

    Black / Olive
    GWG-1000-1A3
    $649.99

  • Black / Yellow

    Black / Yellow
    GWG-1000-1A9
    n/a

  • Black / Gold

    Black / Gold
    GWG-1000GB-1ACR
    n/a

  • Rescue Red

    Rescue Red
    GWG-1000RD-4A
    n/a

  • Desert Camoflauge

    Desert Camoflauge
    GWG-1000DC-1A5
    $846.00

Casio Gravitymaster

Gravitymaster GW-A1100The Gravitymaster is one of the newest model lines in the “Master of G” series. The GPW-1000 line has full GPS capabilities, allowing for automatic time synchronization worldwide. It features some useful aviator features, including dual world time, directional compass, and 24 hour chronograph.

The Flyback chronograph models allow for resetting of the chronograph without first needing to stop it, a simple timesaving feature that is useful for pilots.

 


GPS Models (GPW-1000 Series)

Size: 66mm × 56mm × 18.8mm
Unique Features: GPS Receivers, Carbon Fiber Insert Band,
Module: 5410 (Operation Guide)
Capabilities: Solar Multiband 6 Altimeter Barometer Depth Compass Thermometer Tidegraph Moonphase
  • Black Standard

    Black Standard
    GPW-1000-1B
    n/a

  • Black / Blue

    Black / Blue
    GPW-1000-1A
    $710.00

  • Master in Olive Drab

    Master in Olive Drab
    GPW-1000KH-3A
    $731.83

  • Rescue Red

    Rescue Red
    GPW-1000RD-4A
    n/a

  • Black and Gold

    Black and Gold
    GPW-1000GB-1A
    $586.52

  • 2015 'Vintage' Edition

    2015 'Vintage' Edition
    GPW-1000V-1A
    $948.90

  • Titanium Edition

    Titanium Edition
    GPW-1000T-1A
    $967.68

  • Black and Gold

    Black and Gold
    GPW-1000FC-1A9
    $900.00

  • Grey and Black

    Grey and Black
    GPW-1000FC-1A
    $882.00

  • Blue and Orange

    Blue and Orange
    GPW-1000-2A
    $910.94

  • Black and Orange

    Black and Orange
    GPW-1000-4A
    $2,400.00

Worldtime Models (GA-1100 Series)

Size: 50.8mm × 52.1mm × 16.9mm
Unique Features: Analog World Time, Internal Compass Bezel
Module: 5441 (Operation Guide)
Capabilities: Solar Multiband 6 Altimeter Barometer Depth Compass Thermometer Tidegraph Moonphase
  • Black

    Black
    GA-1100-1A
    $179.79

  • Black and Teal

    Black and Teal
    GA-1100-1A3
    $169.00

  • Red and Blue

    Red and Blue
    GA-1100-2A
    n/a

  • Black and Blue

    Black and Blue
    GA-1100-2B
    $156.00

  • Black and Gold

    Black and Gold
    GA-1100-9G
    $175.42

Flyback Models (GW-A1100 Series)

Size: 48.4mm × 53.8mm × 17.3mm
Unique Features: Flyback Chronograph, Sapphire Crystal, Analog Worldtime
Module: 5311 (Operation Guide)
Capabilities: Solar Multiband 6 Altimeter Barometer Depth Compass Thermometer Tidegraph Moonphase
  • Black

    Black
    GW-A1100-1A3
    $480.00

  • Black and Red

    Black and Red
    GW-A1100-1AJF
    $524.35

  • Black and Teal

    Black and Teal
    GW-A1100-1A3JF
    $470.00

  • Black and Blue

    Black and Blue
    GW-A1100FC-1AJF
    $549.88

  • Orange

    Orange
    GW-A1100R-4A
    $329.94

  • Black / Blue / Orange

    Black / Blue / Orange
    GW-A1100-2AJF
    n/a


Get The Dispatch

If you enjoyed this post, drop us your email address and we'll keep you up to date with the latest on tool watches, gear and style.

 


About the Author
Mike Johnson

Mike Johnson

Mike Johnson is the managing editor and primary contributor to 60clicks.com. Born into a military family as the son of US Navy pilot, Mike spent many of his formative years studying Computer Science and User Experience Design. When not obsessing over watches, Mike spends time hiking, traveling, and spending time with his family in Phoenix, Arizona.


Comments 2

  1. Pingback: "Master of G" Collector's Resource

Leave a Reply

Your email address will not be published. Required fields are marked *