Casio G-Shock GA-2100SR-1A Stone Case Rainbow Dial Mod Watch

Casio G-Shock GA-2100SR-1A — Stone Case Rainbow Dial Edition

The most visually striking variant in the GA-2100 lineup: a natural stone case paired with a mesmerizing rainbow gradient dial. Each stone case is unique in its veining and texture, making your watch truly one-of-a-kind. The rainbow dial catches light from every angle, shifting through the spectrum to create an ever-changing display of color against the organic stone backdrop.

This combination of natural materials and vibrant color creates a watch that sits at the intersection of geological beauty and precision engineering — a wearable piece of art that refuses to go unnoticed.

Technical Specifications:

• Case Size: 45.4 × 42.2 × 11.2 mm
• Case Material: Natural Stone (unique veining pattern per piece)
• Strap Material: Resin
• Dial: Rainbow Gradient (iridescent color shift)
• Water Resistance: WR200M (20 BAR)
• Weight: ~43g
• Battery Life: 3 Years (SR726W × 2)

Features:

• Analog + Digital Dual Display (GA-2100’s signature layout)
• 1/100-second Stopwatch (24HR capacity)
• Countdown Timer
• 5 Daily Alarms + 1 Snooze Alarm
• Super Illuminator LED backlight
• 12/24-hour format toggle
• Full Auto Calendar (set to 2099)
• Hand shift function (hands move aside for unobstructed digital display)

About the Stone Case:

Natural stone is quarried, sliced, and carefully processed to create watch cases of exceptional beauty. No two stone cases are identical — the unique mineral veining, color variations, and natural patterns mean each watch carries its own individual character. The stone is sealed and reinforced for durability while preserving its natural aesthetic.

About the Rainbow Dial:

The rainbow gradient dial features a multi-layer coating that creates a prismatic color shift effect. Under natural light, the dial transitions through red, orange, yellow, green, blue, and violet — creating a hypnotic display that changes with your environment and viewing angle.

What’s Included:

• 1 × GA-2100SR-1A Stone Case Rainbow Dial Watch
• Original Casio Box
• Warranty Card

About the GA-2100 (CasiOak) Series:

The GA-2100 is Casio’s slimmest G-Shock at just 11.2mm thick, featuring the iconic octagonal bezel inspired by the Audemars Piguet Royal Oak. Its analog + digital hybrid display and versatile design have made it the defining watch of its generation. The stone case + rainbow dial edition represents the pinnacle of GA-2100 customization.

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Looking for a different style? Check out our GA Series collection for more customization options, or use our online watch customizer to create your perfect watch.