Casio G-SHOCK – Model GM2100M-1A

Modern Industrial Metal Design with Signature G-SHOCK Toughness

The GM2100M-1A from the G-STEEL / 2100 Series brings together streamlined industrial aesthetics and uncompromising G-SHOCK durability. With its stainless-steel bezel, achromatic color scheme, and practical everyday utility, this model delivers a clean, modern look engineered for long-term wear.

Design Overview

This analog-digital combination adopts the iconic 2100 octagonal form paired with a metal bezel, creating a monochromatic modern industrial style. The textured bezel pattern adds depth, while a touch of red on the function label symbolizes G-SHOCK’s dedication to toughness and precision.

Openings in the bezel’s unique form reveal the inner case structure, emphasizing the core shock-resistant technology that defines G-SHOCK design philosophy.

Built for both universal design appeal and long-lasting practicality, the GM2100M-1A is a timepiece crafted to accompany you for years to come.

Key Highlights

✔ Stainless-steel bezel with textured industrial pattern
✔ Achromatic, modern minimalist color scheme
✔ Bio-based resin band for reduced environmental impact
✔ Shock-resistant structure with 200-meter water resistance
✔ Dual LED illumination (analog + digital)
✔ World time with 31 time zones
✔ Approx. 3-year battery life (SR726W × 2)

Features & Specifications

Case & Band

• Size: 49.3 × 44.4 × 11.8 mm

• Material: Resin / Stainless steel

• Band: Bio-based resin band

• Weight: 71 g

Water Resistance

• 200-meter water resistance

Power Supply

• Battery: SR726W × 2

• Battery Life: Approx. 3 years

Exterior

• Glass: Mineral Glass

• Compatible Band Size: 145–215 mm

• Other: Neobrite

Watch Features

World Time

• 31 time zones (48 cities + UTC)

• Daylight saving on/off

Stopwatch

• 1/100-second stopwatch

• Measuring capacity:

  • 00'00"00–59'59"99 (first 60 min)

  • 1:00'00–23:59'59 (after 60 min)

• Measuring modes: Elapsed time, split time, 1st–2nd place times

Timer

• Countdown timer

• Measuring unit: 1 second

• Countdown range: 24 hours

• Start time setting:

  • 1-second increments

  • 1-minute increments

  • 1-hour increments

Light

• Double LED Light (Super Illuminator)

  • LED for the face

  • LED backlight for the digital display

• Selectable illumination duration: 1.5 seconds or 3 seconds

• Light Color: White

Calendar

• Full auto-calendar (to year 2099)

Accuracy

• ±15 seconds per month

Mute Feature

• Button operation tone on/off

Other Features

• 12/24-hour format

• Hand shift feature (hands move aside for clear digital visibility)

• Regular timekeeping:

  • Analog: Hour, minute (moves every 20 sec), 1 dial (day)

  • Digital: Hour, minute, second, pm, month, date

Summary

The Casio G-SHOCK GM2100M-1A is a refined, modern interpretation of the iconic 2100 form. With its industrial metal bezel, shock-resistant construction, bio-based resin band, and practical everyday features, this model is ideal for those who appreciate minimalist design with true G-SHOCK durability.

For more details, visit the official CASIO website here.

Warranty:

• The watch is covered by a 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.