Overview
The Casio G-Shock GA-2100RI25-7AJR is a special collaboration timepiece commemorating the 25th anniversary of Taito’s beloved Rainbow Islands arcade game. Built on the popular GA-2100 “CasiOak” platform, this limited edition watch features a striking white case with rainbow gradient accents that pay homage to the game’s iconic visuals. The slim 11.8mm profile combines G-Shock’s legendary toughness with contemporary style, making it perfect for both gaming enthusiasts and watch collectors seeking a unique Japanese exclusive model.
Features
* Limited Edition Design – Rainbow Islands 25th Anniversary collaboration with exclusive rainbow gradient styling
* Carbon Core Guard Structure – Advanced carbon fiber reinforced case for superior shock resistance
* 200M Water Resistance – Suitable for swimming, snorkeling, and water sports
* Analog-Digital Display – Combines traditional analog hands with digital LCD functions
* Octagonal Bezel Design – Distinctive “CasiOak” case shape inspired by the legendary Royal Oak
* LED Illumination – Super bright LED light with afterglow for easy reading in darkness
* World Time Function – 31 time zones with city code display
* Stopwatch – 1/100 second precision, 24-hour measurement capacity
* Countdown Timer – Up to 24 hours with auto-repeat function
* 5 Daily Alarms – Multiple alarm settings plus hourly time signal
* Full Auto Calendar – Pre-programmed through year 2099
* 12/24 Hour Format – Switchable time display
* Shock Resistant – G-Shock’s signature protection against impact and vibration
* Resin Band – Comfortable, durable, and lightweight construction
Specifications
Movement: Quartz analog-digital
Case Size: 45.4mm diameter × 48.5mm length × 11.8mm thickness
Case Material: Carbon fiber reinforced resin with stainless steel back
Crystal: Mineral glass
Band: White resin strap with rainbow gradient accents
Band Width: 20mm
Clasp: Standard buckle
Water Resistance: 200 meters (20 ATM / 660 feet)
Weight: Approximately 51 grams
Battery Life: Approximately 3 years (CR1220)
Functions: World time (31 time zones), stopwatch, countdown timer, 5 daily alarms, LED light, full auto calendar, 12/24-hour format
Special Features: Rainbow Islands 25th Anniversary limited edition logo and design elements
Model Number: GA-2100RI25-7AJR (Japanese Domestic Market)
Country of Origin: Japan (assembled in Thailand/China with Japanese quality control)
Shipping & Handling
Your G-Shock GA-2100RI25-7AJR will be carefully packaged in its original box with all documentation and warranty cards. We use secure, padded packaging to ensure your watch arrives in perfect condition. All shipments include tracking information and are dispatched within 1-2 business days from Tokyo. Express shipping options are available for faster delivery to the US, UK, and Australia. Full insurance coverage is included with every order.
About Watch-Tokyo.com
Thank you very much for your interest in our store.
All our watches are 100% authentic Japanese models, shipped carefully from Tokyo.
At our official store Watch-Tokyo.com, you can find Japan-exclusive models, special prices and fast shipping to the US, UK and Australia:
