Casio G-SHOCK 2100 Series – Model GA-2100SR-1A

The GA-2100SR-1A pushes the iconic 2100 Series design into dazzling new territory with its first-ever full-surface iridescent crystal. The bold rainbow gradation across the dial evokes the midsummer sky at dusk, shifting color as the light changes, ensuring every watch is a one-of-a-kind statement piece.

Design Overview

This model features G-SHOCK’s signature octagonal case, built with a Carbon Core Guard structure for ultimate durability in a lightweight design. The iridescent crystal finish is achieved through rainbow vapor deposition, giving the dial its unique shimmer that varies with every angle and lighting condition.

Paired with a sleek black resin band, shock-resistant construction, and 200-meter water resistance, the GA-2100SR-1A blends futuristic aesthetics with the rugged reliability G-SHOCK is known for.

Key Highlights

✔ First-ever G-SHOCK with full-surface gradated iridescent crystal
✔ Unique rainbow vapor deposition for one-of-a-kind dial patterns
✔ Carbon Core Guard structure with shock-resistant build
✔ Lightweight at just 51 g for all-day comfort
✔ 200-meter water resistance
✔ Double LED light (Super Illuminator) for clear visibility at night

Features & Specifications

Case & Band

• Case Size: 48.5 × 45.4 × 11.8 mm

• Material: Carbon/Resin case & bezel

• Band: Resin band

• Weight: 51 g

• Construction: Carbon Core Guard, Shock Resistant

Exterior

• Glass: Mineral Glass (specially treated for rainbow gradation)

• Compatible Band Size: 145–215 mm

• Other: Neobrite

Water Resistance

• 200-meter water resistance

Timekeeping & Functions

• World Time: 31 time zones (48 cities + UTC), daylight saving on/off

• Stopwatch: 1/100-second, up to 24 hours, split/elapsed/1st–2nd place times

• Timer: Countdown timer (24 hours, 1-second increments)

• Alarms: 5 daily alarms + hourly time signal

• Calendar: Full auto-calendar (to 2099)

• Format: 12/24-hour timekeeping

• Hand Shift Feature for clear digital display view

• Accuracy: ±15 seconds per month

Lighting

• Double LED (Super Illuminator) with selectable illumination (1.5 or 3 seconds)

• LED Color: White

Battery & Power

• Battery Type: SR726W × 2

• Battery Life: Approx. 3 years

Summary

The GA-2100SR-1A redefines the 2100 Series with a bold, iridescent crystal that transforms with the light. Combining futuristic style with G-SHOCK’s legendary toughness, it’s a lightweight, shock-resistant, and water-ready watch built to stand out in every environment.

For more details, visit the official CASIO website here.

Warranty:

• The watch is covered by a official warranty, providing assurance and protection for your purchase.

▶︎Processing Time & Shipping Policy
▶︎Refund policy
▶︎We only carry G-SHOCK USA products.
▶︎Unfortunately, we DO NOT ship internationally.