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G-SHOCK GM-2100 — Black

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GM-2100In stock

G-SHOCK GM-2100 — Black

$200Black

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Order by 6 PM PT (Mon–Fri) and it ships the same day

Free standard U.S. shipping · 3–7 business days in transit

Studio Mon–Fri 9 AM–6 PM PT

Base model
GM-2100
Case shape
Octagonal, metal-covered bezel
Display
Analog-digital
Materials
Stainless steel, Carbon
Details

Casio G-Shock GM-2100

The Casio G-Shock GM-2100 elevates the iconic octagonal design with a premium metal bezel while maintaining the legendary durability G-Shock is known for. Combining refined style with rugged performance, the GM-2100 is built for everyday wear, whether you're at work, traveling, or out for the evening.

Its slim profile, comfortable fit, and durable construction make it a versatile timepiece that transitions effortlessly from casual to elevated looks.

Features

  • Premium stainless steel bezel
  • Shock-resistant construction
  • Carbon Core Guard structure
  • Analog-digital display
  • Double LED illumination
  • World Time (31 time zones)
  • 1/100-second stopwatch
  • Countdown timer
  • 5 daily alarms
  • Full auto calendar
  • Hand Shift feature for improved digital visibility
  • 12/24-hour time format
  • Approx. 3-year battery life

Why You'll Love It

✔ Premium metal bezel with the iconic octagonal design
✔ Lightweight, slim, and comfortable for all-day wear
✔ Built with legendary G-Shock toughness
✔ Versatile style for work, travel, and everyday use
✔ A perfect blend of durability, functionality, and modern design

Whether you're adding to your collection or searching for the perfect everyday watch, the Casio G-Shock GM-2100 delivers premium style, reliable performance, and the toughness that has made G-Shock an icon.

Water use: Please contact us to confirm the rating for this specific watch before swimming or submerging it. Custom modifications can affect water resistance.

Full specifications
G-SHOCK GM-2100 — Black specifications
Base modelGM-2100
Case shapeOctagonal, metal-covered bezel
DisplayAnalog-digital
MaterialsStainless steel, Carbon
ColorwayBlack
TypeWatches
Dispatchships same day from Los Angeles when ordered by 6 PM PT (Mon–Fri)
GM-2100 base model facts
Stock GM-2100 specifications from Casio
Case size49.3 × 44.4 × 11.8 mm
Weight (stock)72 g (2.5 oz)
Water resistance (stock)200 m / 20 bar
Power3-year battery
Module5611

These are Casio's specifications for the stock GM-2100-1A. Customization can change finish and materials and can affect water resistance, so contact us to confirm this piece before swimming.

Full GM-2100 guide: specs, battery life and questions

Shipping & returns

Standard U.S. shipping is free with no minimum. In stock — ships same day from Los Angeles when ordered by 6 PM PT (Mon–Fri). Allow 3–7 business days for U.S. delivery after dispatch. We also ship to Canada for a flat $35 per order (6–10 business days after dispatch); Canadian duties and taxes aren't included and are paid on delivery. Choose your country in the bag.

Return requests are accepted within 14 days of delivery for eligible, unworn items in original packaging; return shipping is paid by the buyer. If a piece arrives defective, damaged or isn't what you ordered, we make it right, return shipping included. Sale items and pieces made or personalized to your request can't be returned. Read the refund policy.

Authenticity & disclaimer

Bezelwright (BW) is an independent customizer operated by Caventra LLC and is not affiliated with, endorsed by, or sponsored by Casio Computer Co., Ltd. G-SHOCK, Baby-G and Casio are trademarks of Casio Computer Co., Ltd., used here only to describe the base models our products are built on or fit.

Fig. 01Build sheet

Know exactly what's on your wrist.

The base model, the case and the colorway, next to Casio's stock specs for the GM-2100.

The full GM-2100 guide
  1. 01Base model: G-SHOCK GM-2100 · module 5611
  2. 02Case: 49.3 × 44.4 × 11.8 mm · Casio stock
  3. 03Colorway: Black
  4. 04Weight: 72 g · Casio stock
  5. 05Water: 200 m stock · custom work can change it, ask us
  6. Case width 44.4 mm, length 49.3 mm.

Case, weight and water resistance are Casio's figures for the stock GM-2100; custom parts can change weight and water resistance, so ask us about a specific piece before you swim with it.

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About this custom G-SHOCK watch

When will the G-SHOCK GM-2100 — Black ship?

It ships same day from Los Angeles when ordered by 6 PM PT (Mon–Fri). U.S. delivery then takes 3–7 business days. Standard U.S. shipping is free.

What base model is this watch?

This piece is built on the GM-2100 silhouette. The metal-covered evolution of the octagonal GA-2100: the same silhouette with a steel bezel that catches light.

Can I swim with this GM-2100?

Casio rates the stock GM-2100 to 200 m (20 bar). Custom modifications can affect water resistance, so contact us to confirm the rating for this specific watch before swimming or submerging it.

How long does the battery last?

The stock GM-2100 runs about 3 years on SR726W × 2, according to Casio. Battery life can vary with use of the light and alarms.

Can I return my order?

Return requests are accepted within 14 days of delivery for eligible, unworn items in their original packaging. Return shipping is paid by the buyer. Sale items and pieces made or personalized to your request can't be returned. If a piece arrives defective, damaged or isn't what you ordered, contact us right away and we'll make it right, return shipping included. Email us before sending anything back so we can confirm eligibility and share return instructions. The same applies to orders shipped to Canada; Canadian duties, taxes and carrier fees paid on import aren't refunded by us.

Are Bezelwright watches made by Casio?

No. Bezelwright is an independent customizer and is not affiliated with Casio. Our watches are custom styles built on or inspired by G-SHOCK base models, and our bezels are aftermarket accessories. G-SHOCK is a trademark of Casio Computer Co., Ltd.