Casio G-Shock G-9100 Watches

“GULFMAN” is a Master of G series rustproof structure with specialized functions to withstand use in extreme conditions.
Assuming use at sea, all metal parts exposed to the atmosphere are made of titanium. Not only screws, bags, and locks, but also button shafts are made of titanium. Also consider the shape of the parts. In order to avoid corrosion, the spring bar that stops the band is thoroughly rust-proof by adopting machined titanium screws.

Important Information


Feedback from users *accumulated information from our own comments and emails, forum threads, socials, reviews, etc.

PROs
+ durability
+ visible display and backlight
+ light
+ handy features
+ rust resistant
+ water resistant
+ well-priced

CONs
– wasteful seconds graph
– bulky
– home Site Data programming
– tide/moon graphs work only at home site
– not atomic
– not solar
– NOT INTENDED FOR SCUBA DIVING


G-9100 Model Range *may be updated


The most distinctive specs of G-9100 *Editorial
— 200-meter water resistance
(good for swimming but not for deep diving)
— Corrosion-resistant housin (the special finish on all visible metal parts provides protection against corrosion)
— Moon data (moon age of the specific date)
— Tide graph (tide level for specific date and time)
Yacht timer (The perfect prerequisite to every regatta and yacht race: The countdown start time can be set within a period of 1 to 10 minutes, usually 5 minutes)


Official Marketing Focus from Casio

You’ve been tracking the storm all week and today, there’s an offshore breeze. What tide is it? Just look at your Gulfman G-Shock for the answer.

Official G-9100 Specs / Features *for base version G-9100-1

  • Shock Resistant
  • Rust Resistant
  • 200M Water Resistant
  • Auto Dual EL Backlights with Afterglow
  • Tide Graph
  • Moon Data (moon age of the input data, moon graph)
  • World Time29 times zones (48 cities), city code display, daylight saving on/off
  • 3 Multi-function Alarms (1 with snooze)
  • Countdown TimerMeasuring unit: 1 secondCountdown range: 1 minute to 24 hoursAuto Repeat, timeup alarm, progress beeper
  • 1/100 second stopwatchMeasuring capacity: 24:59’59.99″Measuring modes: Elapsed time, split time, 1st-2nd place times
  • Hourly Time Signal
  • Flash Alert (stopwatch auto-start, countdown alarm, alarms, hourly time signal)
  • Button Tone Operation On/Off
  • Auto Calendar (pre-programmed until the year 2099)
  • 12/24 Hour Formats
  • Accuracy: +/-15 seconds per month (with no signal calibration)
  • Battery: CR2025
  • Approx. battery life: 7 Years
  • Module 3088
  • Size of case/total weightG9100 51.0 x 46.0 x 16.4mm / 53g

G-9100 Comparison Table with similar G-Shock Watches

G-9100

Price (Amazon)

Year of first Release

2007

2006

Accuracy

±15 seconds per month

±15 seconds per month

SmartWatch Features

No

No

GPS (for distance and speed monitor)

No

No

USB Charging

No

No

Light

Auto Dual EL Backlights with Afterglow

Electro-luminescent backlight
Auto light switch, dual illuminator, selectable illumination duration, afterglow

Alarm

3 Multi-function Alarms (1 with snooze)

5 Multi-functional alarms

Timer

Measuring unit: 1 second
Countdown range: 1 minute to 24 hours
Auto Repeat, timeup alarm, progress beeper

Measuring unit: 1 second
Countdown range: 24 hours
Countdown start time setting range: 1 minute to 24 hours (1-minute increments and 1-hour increments)
Others: Auto-repeat, progress beeper

Stopwatch

1/100 second stopwatch
Measuring capacity: 24:59’59.99″
Measuring modes: Elapsed time, split time, 1st-2nd place times

1/100-second stopwatch (ST2)
Measuring capacity: 999:59’59.99”
Measuring modes: Elapsed time, split time, 1st-2nd place times

Hourly Time Signal

Yes

Yes

World Time

29 times zones (48 cities), city code display, daylight

29 time zones (48 cities), city code display, daylight saving on/off

Auto-Back Light

Yes

Yes

Altimeter

No

No

Barometer

No

No

Compass

No

No

Multi Timer

No

No

Thermometer

No

No

Vibration

No

No

Mud Resistance

No

Yes

Magnetic Resistance

No

No

Tough MVT

No

No

Tide graph

Yes

No

Dive Timer

No

No

Moon Graph

Yes

No

Case / bezel material

Resin

Resin / Stainless steel

Glass

Mineral Glass

Mineral Glass

Battery

7 Years on CR2025

3 years on CR2025

Size (mm) *we consider 48.9×42.8×13.4 to be a traditional watch size (as in DW-5600). So you are to compare how far or close the watch is to this size

51.0x46.0x16.4

52×46.3×16.3

Full features (if you want to know more)



G-9100 Replacement Band (Strap) *availability
We think it is very important (before buying a new watch) to know if there will be some choice as for replacement bands for G-9100 (in future or even now). So we made a research and you shouldn’t worry about your future as the bands are available for buying.

starting from 110$ on eBay →
starting from 32$ on PacParts →


Recent News about G-9100 

All Casio G-9100 News →


You ask, we answer…

What does 200-meter water resistance in G-9100 mean?

The watch is good for swimming but not for deep diving.

What is Corrosion-resistant housin in G-9100?

It’s the special finish on all visible metal parts that provides protection against corrosion.

What does Tide graph in G-9100 show?

Tide level for specific date and time.

What is Yacht timer in G-9100?

The perfect prerequisite to every regatta and yacht race: The countdown start time can be set within a period of 1 to 10 minutes, usually 5 minutes.

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