Casio G-Shock 30th Anniversary Special Frogman "Red" GW-8230NT-4JR
Casio G-Shock 30th Anniversary Special Frogman "Red" GW-8230NT-4JR Front
Casio G-Shock 30th Anniversary Special Frogman "Red" GW-8230NT-4JR Packaging

Casio G-Shock 30th Anniversary Special Edition Frogman "Red" GW-8230NT-4

Regular price $829.00 USD $789.00 USD Sale

Casio G-Shock 30th Anniversary Special Edition Frogman "Red"


The first G-SHOCK debuted in April 1983 celebrating its 40th anniversary this year. Amongst them, the ISO-certified proper diving watch series "Frogman" which was released in 1993 has also been around for 30 years.

As the third edition of the FROGMAN limited project commemoration, the DW-8200NT released in 2000 has been reproduced as a commemorative model in 2023, the GW-8230NT-4. The asymmetrical shape, which is the icon of FROGMAN, is a bold design that shines with the red color on the bezel, band, and liquid crystal. Biomass plastic is used for the bezel and band with the aim of reducing environmental impact, and tough solar is also installed.

A special design for the 30th anniversary of FROGMAN is engraved on the back cover of the titanium case, making it stand out even when the backlight is on. Comes with a box designed with FROGMAN's character, a diving frog. The packaging also adheres to the same concept and is made of recycled paper and linen bags.

Casio G-Shock 30th Anniversary Special Frogman "Red" GW-8230NT-4

GW-8230NT-4 Specification:

Tough Solar (Solar powered)

Case/bezel material: Titanium/Bio-based Resin
Strap: Bio-based resin strap
Construction: Shock Resistant
Glass: Mineral glass
Back cover: Screw case back cover
Surface treatment: Black ion-plated case

Product Features:

200-meter water resistance

Diving function
Diving time and surface interval measurement function Diving time: increase in units of 1 second, up to 23:59'59 Surface interval: increase in units of 1 minute, up to 47:59'59 Memory capacity: a set of 10 data (diving start date and time, dive time)

World time
World Time 31 time zones (48 cities + UTC), city code display, daylight saving time on/off

Moon data
Moon data (moon age, moon phase map for a specified date)

Tide chart
Tide graph (ebb tide level for specified date and time)

1/100-Second Stopwatch Measuring Limits: 23:59'59.99'’ Measuring Modes: Elapsed Time, Split Time, 1st, 2nd Place Time

Timer function
Countdown Timer Unit of measure: 1-second Input range: 1 minute to 24 hours (in increments of 1 minute and 1 hour)

Alarm/Hourly Time Signal
5 daily alarms (1 snooze alarm)
hourly signal

LED backlight (Super Illuminator) Fully automatic LED light, selectable lighting time (1.5 sec or 3 sec), afterglow
LED: white

Fully automatic calendar (to year 2099)

Mute function
Button operation beep on/off

Energy saving function
Power saving (turns off the display when the watch is in a dark space)

Battery display/alarm
battery power indicator

Operation hours
Approximate battery life: 14 months on rechargeable battery (based on typical use, with no exposure to light after the battery is charged) and 36 months on rechargeable battery (when the unit is fully charged and placed in a total darkness environment, using power saving mode)

Accuracy: ±15 seconds per month

Other functions
12/24 hour format
General timing status: hour, minute, second, pm, month, date, day


Size of case/weight:

  • Size of case: 52mm x 50.3mm x 18mm
  • Weight: 84g

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