Casio G-Shock FROGMAN Master of G Sea - GW-8230B-9A

Dive into the celebration of the 30th anniversary of
the G-SHOCK Master of G Frogman family of full-fledged
diver’s watches with ISO-standard 200-meter water
resistance. The ever-popular second-generation Frogman,
the DW-8200, made quite a splash when it launched back
in the 1990s1993, with its high-impact asymmetrical
design featuring a resin bezel and titanium case.
More than just a revival of this original design,
the GW-8230B represents a new evolution — it is
the first Frogman to use Earth-friendly biomass plastics
in the bezel & band. Add Tough Solar powered by a solar
panel designed especially to reproduce the shape of
the DW-8200 dial, and you have a special diver’s watch
that goes the extra mile to reduce environmental impact.
This limited edition reprises the a popular DW-8200B-9A
black and gold color scheme while adding high-tech
functions to bring state-of-the-art 21st century technology
to 1990s design. The back of the titanium case and the LED
backlight both display a special Frogman 30th anniversary
design.

Case size (L× W× H)
52 × 50.3 × 18 mm

Weight
84 g

Band
Resin Band

Construction
Shock Resistant

Water resistance
ISO 200 meters Water Resistance

Power supply and battery life
Tough Solar (Solar powered)

Glass
Mineral Glass

Back plate
Screw Lock Back

Surface treatment
Black ion plated case

Diving feature

Dive time and surface interval measurement function
Dive time: 1 second increments, up to 23:59'59
Surface interval: 1 minute increments, up to 47:59'59
Memory capacity: One set of 10 data (dive start date and time,
dive time)

World time

31 time zones (48 cities + coordinated universal time),
city code display, daylight saving on/off
Moon data
Moon data (moon age of the specific date, moon phase graph)
Tide graph
Tide graph (tide level for specific date and time)

Stopwatch

1/100-second stopwatch
Measuring capacity: 23:59'59.99''
Measuring modes: Elapsed time, split time, 1st-2nd place times

Timer

Countdown timer
Measuring unit: 1 second
Input range: 1 minutes to 24 hours
(1-minute increments and 1-hour increments)

Alarm/hourly time signal

5 daily alarms (with 1 snooze alarm)
Hourly time signal

Light

LED backlight (Super Illuminator)
Full auto LED light, selectable illumination duration
(1.5 seconds or 3 seconds), afterglow

Light color

LED:White

Calendar

Full auto-calendar (to year 2099)

Mute feature

Button operation tone on/off

Energy saving feature

Power Saving (Turns off the display when
the watch is left in the dark)

Battery display/alert

Battery power indicator

Run time

Approx. battery operating time:
14 months on rechargeable battery (operation period
with normal use without exposure to light after charge)
36 months on rechargeable battery (operation period
when stored in total darkness with the power save
function on after full charge)

Accuracy

Accuracy: ±15 seconds per month

Other features

12/24-hour format
Regular timekeeping:
Hour, minute, second, pm, month, date, day