Casio G-Shock GM-2100B-7A Rainbow Index Watch For Men

The GM-2100B-7A is the striking colorful representation of the legendary octagonal G-Shock design. The limited edition has a rainbow color with the hour markers to come up with this artistic and yet unique appearance. When paired with tested durability and performance G-Shock has been all about, it becomes one of the must-have items of both collectors and fashion-conscious users.

Key Features:

• Model: GM-2100B-7A

• Display: Analog-Digital

• Dial Color: Silver with Rainbow Index Markers

• Bezel Material: Stainless Steel (Polished Silver Finish)

• Strap Material: Resin (Black)

• Case Shape: Octagonal

• Water Resistance: 200 meters (20 BAR)

• Shock Resistance: Yes

• Glass Type: Mineral Glass

• Neobrite: Yes (luminous coating)

Lighting & Display:

• Double LED Light

  • Super Illuminator for Analog Face

  • LED Backlight for Digital Display

  • Selectable Illumination Duration (1.5 or 3 seconds)

• Hand Shift Function

  • Hands move to avoid obscuring digital displays

Functions & Tools:

• World Time: 31 time zones (48 cities + UTC)

• Stopwatch: 1/100-sec for first 60 mins, 1-sec after, up to 24 hrs

• Countdown Timer: Up to 24 hrs

• 5 Daily Alarms + Hourly Time Signal

• Full Auto Calendar (Till 2099)

• 12/24-Hour Time Format

• Mute Button Option

Size & Fit:

• Case Size: 49.3 × 44.4 × 11.8 mm

• Weight: Approx. 72 g

Battery & Accuracy:

• Battery Life: Approx. 3 years on SR726W × 2

• Accuracy: ±15 seconds/month

Why It Stands Out:

This model merges the sleek, industrial G-Shock metal case design with a playful rainbow twist, perfect for those who want ruggedness with flair.

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