Skip to search
Bestsellers     New arrivals     Limited Time Sale     Marketplace     67,050 Items
Japan : 4/24 03:00   EN
Europe, UK: Wednesday, Apr 29
USA: Monday, Apr 27
Australia: Wednesday, Apr 29
Asia: Tuesday, Apr 28
UAE: Tuesday, Apr 28

Order within 20 Hours 59 mins with Scheduled Delivery. If you place an order within this time, We will ship on Monday, Apr 27 2026. This delivery time is calculated by DHL & Fedex. You can check the exact delivery date on checkout page.

Buyer Protection

Full refund if not genuine. Full or partial refund, if the new item is not as described.

     Description (2,927 characters)
G-SHOCK, the tough watch that has continued to evolve in pursuit of ever-increasing strength since its launch in 1983, is pleased to announce the fifth signature model from professional golfer Ryo Ishikawa, who is affiliated with CASIO.

The base model is the GA-2100 with an octagonal bezel and a slim case that won't get in the way during your golf swing.

The dial features a calm blue that evokes fighting spirit, the overall color scheme is white, which represents purity and determination, and the orange accent color represents hope, making it easy to coordinate with any golf wear.

In addition, the skeleton dial creates an impressive design that has never been seen before.

Ryo Ishikawa's signature is engraved on the case back and at the 12 o'clock position, and the watch comes with a special package that includes a trading card, making it a special edition.

[Ryo Ishikawa, CASIO] He started playing golf at the age of 6 and won his first professional tournament in 2007, the Munsingwear Open KSB Cup, at the age of 15 years and 245 days, becoming the youngest winner in the tour's history.

In January 2008, while still in high school, he declared his intention to turn professional at the age of 16.

In 2009, he won four races in Japan and became the youngest player ever to win the prize money title.

He continued to perform well after that, and in 2019 he became the youngest player in history to win 1 billion yen in lifetime prize money.

In 2024, he won the Sumitomo Mitsui VISA Pacific Masters for the fourth time, the most in the tournament, and became the 12th player in tour history to win 20 times.

He continues to lead the Japanese golf world as a top professional.

Joined CASIO in 2013.

Shock resistant, 20 bar water resistance, hand retraction function (if the hands overlap the LCD display and are difficult to see, the hands can be temporarily retracted from above the LCD display).
World time: 48 cities (31 time zones, daylight saving time setting function) + UTC (Coordinated Universal Time) time display Stopwatch (1/100 second (less than 1 hour) / 1 second (more than 1 hour), 24-hour counter, split).
- Timer (set unit: 1 second, maximum set: 24 hours, measured in 1-second increments).
Five time alarms, hourly time signal, full auto-calendar, 12/24 hour display switching, operation sound ON/OFF switching function, double LED light: LED light for dial (Super Illuminator, afterglow function, afterglow time switching (1.5 seconds / 3 seconds)), LED backlight for LCD (Super Illuminator, afterglow function, afterglow time switching (1.5 seconds / 3 seconds)).
Battery life: Approximately 3 years
* Battery life is calculated from the time of manufacture as it is a monitor battery.

Model Number: GA-2100RI25-7AJR


Tags:

Casio  wristwatch  Men  Silver  White  Collaboration  Casio G-Shock GA series  GShock  RyoIshikawaSignature  GA2100RI257AJR  


Products Similar to 'CASIO'

New arrivals

HOT ITEMS

Bestseller
Panasonic Full-Frame Mirrorless Camera
Panasonic Full-Frame Mirrorless Camera "...
C$ 2,335
SEIKO SELECTION SBTR017 Men's
SEIKO SELECTION SBTR017 Men's

C$ 215
CASIO G-Shock Watch MIP LCD GW-BX5600-1A1JF Men's All Black (N)
CASIO G-Shock Watch MIP LCD GW-BX5600-1A...
C$ 427
Hasegawa 1/20 Sculpture Beauty's No.03 Sporty Unpainted Resin Kit SP521
Hasegawa 1/20 Sculpture Beauty's No....
C$ 39
New Model
CASIO EDIFICE Watch (Official Japanese Product) Collaboration Model Commemorating the 60th Anniversary of Honda's First F1 Victory  ECB-2300HR-1AJR Men's White
CASIO EDIFICE Watch (Official Japanese P...
C$ 1,287
Bestseller New Model
Shimano 26 Calcutta Conquest DC 200HG RIGHT Right-Handed (2026 Model) Baitcasting Reel /(5) [Σ01]
Shimano 26 Calcutta Conquest DC 200HG RI...
C$ 688
SEIKO Seiko Selection Nano Universe Collaboration Model Ladies Analog Quartz SSEH018 Ladies Black
SEIKO Seiko Selection Nano Universe Coll...
C$ 322
SEIKO Watch Seiko Selection nano universe collaboration SSEH026
SEIKO Watch Seiko Selection nano univers...
C$ 322
Mega House Portrait.Of.Pirates: Tashigi (Beauty version of swimsuit) Ex model PVC figure 1
Mega House Portrait.Of.Pirates: Tashigi ...

C$ 271
Bestseller
TAKARA TOMY BEYBLADE X UX-15 Shark Scale Deck Set
TAKARA TOMY BEYBLADE X UX-15 Shark Scale...
C$ 76
New Model
CASIO G-Shock Watch (Official Japanese Product) DW-5600MNC-8A2JF Men's Dark Gray
CASIO G-Shock Watch (Official Japanese P...
C$ 193
CASIO G-SHOCK FROGMAN radio wave solar GWF-1000-1JF men
CASIO G-SHOCK FROGMAN radio wave solar G...

C$ 659

Bestsellers

CASIO G-Shock Watch RYO ISHIKAWA SIGNATU... 4549526419607 G-SHOCK, the tough watch that has continued to evolve in pursuit of ever-increasing strength since its launch in 1983, is pleased to announce the fifth signature model from professional golfer Ryo Ishikawa, who is affiliated with CASIO.

The base model is the GA-2100 with an octagonal bezel and a slim case that won't get in the way during your golf swing.

The dial features a calm blue that evokes fighting spirit, the overall color scheme is white, which represents purity and determination, and the orange accent color represents hope, making it easy to coordinate with any golf wear.

In addition, the skeleton dial creates an impressive design that has never been seen before.

Ryo Ishikawa's signature is engraved on the case back and at the 12 o'clock position, and the watch comes with a special package that includes a trading card, making it a special edition.

[Ryo Ishikawa, CASIO] He started playing golf at the age of 6 and won his first professional tournament in 2007, the Munsingwear Open KSB Cup, at the age of 15 years and 245 days, becoming the youngest winner in the tour's history.

In January 2008, while still in high school, he declared his intention to turn professional at the age of 16.

In 2009, he won four races in Japan and became the youngest player ever to win the prize money title.

He continued to perform well after that, and in 2019 he became the youngest player in history to win 1 billion yen in lifetime prize money.

In 2024, he won the Sumitomo Mitsui VISA Pacific Masters for the fourth time, the most in the tournament, and became the 12th player in tour history to win 20 times.

He continues to lead the Japanese golf world as a top professional.

Joined CASIO in 2013.

Shock resistant, 20 bar water resistance, hand retraction function (if the hands overlap the LCD display and are difficult to see, the hands can be temporarily retracted from above the LCD display).
World time: 48 cities (31 time zones, daylight saving time setting function) + UTC (Coordinated Universal Time) time display Stopwatch (1/100 second (less than 1 hour) / 1 second (more than 1 hour), 24-hour counter, split).
- Timer (set unit: 1 second, maximum set: 24 hours, measured in 1-second increments).
Five time alarms, hourly time signal, full auto-calendar, 12/24 hour display switching, operation sound ON/OFF switching function, double LED light: LED light for dial (Super Illuminator, afterglow function, afterglow time switching (1.5 seconds / 3 seconds)), LED backlight for LCD (Super Illuminator, afterglow function, afterglow time switching (1.5 seconds / 3 seconds)).
Battery life: Approximately 3 years
* Battery life is calculated from the time of manufacture as it is a monitor battery.

Model Number: GA-2100RI25-7AJR
168272
4549526419607 In Stock