G-SHOCK 2100: The Ultimate Buyer’s Guide

March 12, 2025 -

In this article, we will explore everything you need to know about the G-SHOCK 2100 series, including its standout features and which model might be right for you. Ultra-popular and iconic, this octagonal powerhouse has been making waves since its debut in 2019. G-SHOCK is renowned for pushing boundaries and consistently delivering tough, versatile and stylish timepieces that cater to both watch collectors and new customers alike. Whether you’re seeking cutting-edge features or a minimalist design, we have something for you.

An Introduction to the G-SHOCK 2100 Series

G-SHOCK have always embraced the spirit of challenge in their untiring pursuit of the ultimate toughness. In 1983, Kikuo Ibe, G-SHOCK founding father, resolved to build a watch that would never break and produced the very first G-SHOCK, the DW-5000. In 2019, we set out once more to create the ultimate in toughness and clean aesthetics, whilst combining both analogue and digital functionality, the GA-2100 was born. The slimmest G-SHOCK ever made, taking the internet by storm and becoming an instant design classic. Boasting Carbon Core Guard integration, the 2100 is just as strong as its predecessors from decades before. Sporting the iconic shock absorbers at all four corners and the dimpled lug strap that G-SHOCKs have come to be known for.

The Key G-SHOCK 2100 Models

The first G-SHOCK GA-2100 watch was introduced in 2019. A masterclass in iconic design & innovation, the 2100 range represents a story of continuous development and evolution in the face of adversity and failure.

GA-2100

The GA-2100 boasts the latest Carbon Core Guard technology in a slimmer, more refined case. Sporting the iconic octagonal design, this watch features a three-dimensional dial, combining analogue and digital displays for a more dynamic look. From 2024, it’s built from bio-based resin, eco-friendly and easy-to-wear, offering a comfortable fit on the wrist. Uncompromising in durability and style, it's the perfect entry-level watch and an ideal first G-SHOCK.

Functions:
- 5 daily alarms
- Stopwatch
- Countdown timer
- World Time
- Hand shift mode
- Mute mode

Features:
- 10M shock resistant
- Vibration resistant
- Low temperature resistant
- 200M water resistant
- Mineral glass
- Lightweight/slim case
- Dimensions: 48.5 x 45.4 x 11.8 mm
- Double LED light
- Auto calendar
- Neobrite hands
- Day of the week display
- Date display

GA-B2100

The GA-B2100 watches take the iconic 2100 series to a whole other level. The case size and functions are the same as GA-2100, but with added features such as Tough Solar (solar power charging technology), Bluetooth connective capabilities, Day/date swapping and multi language options.

Functions:
- Bluetooth enabled
- Solar power charging system
- 5 daily alarms
- Hour signal
- Stopwatch
- Countdown timer
- World Time
- Hand shift mode

Features:
- 10M shock resistant
- Vibration resistant
- Low temperature resistant
- 200M water resistant
- Mineral glass
- Lightweight/slim case
- Dimensions: 48.5 x 45.4 x 11.9 mm
- Double LED light
- Auto calendar
- Neobrite hands
- Day of the week display
- Date display

GM-2100

A stunning metal evolution of the 2100 range that today has become a staple piece of fashion wristwear with enhanced strength and beauty. The GM-2100 series offers a simple yet bold design with a metal-covered case and bezel for a luxurious finish.

Functions:
- 5 daily alarms
- Stopwatch
- Countdown timer
- World Time
- Hand shift mode
- Mute mode

Features:
- 10M shock resistant
- Vibration resistant
- Low temperature resistant
- 200M water resistant
- Mineral glass
- Lightweight/slim case
- Dimensions: 49.3 x 44.4 x 11.8 mm
- Double LED light
- Auto calendar
- Neobrite hands
- Day of the week display
- Date display

GM-2110

The latest addition to the renowned 2100 metal range, the GM-2110 Steel Edition, pushing the boundaries of style and resilience. Boasting an octagonal stainless-steel bezel, a sleek metal band, and a bold metallic dial, it’s available in five striking colours - sky blue, navy, lime green, orange, and silver. The GM-2110 range is built for those who appreciate both fashion and function, delivering signature G-SHOCK durability with a refined, modern edge.

Functions:
- 5 daily alarms
- Stopwatch
- Countdown timer
- World Time
- Hand shift mode
- Mute mode

GM-B2100

The GM-B2100 models are full-metal additions to the 2100 range. The full-metal construction with a screw-back case, bezel, and band crafted in stainless steel creates a streamlined, minimalist design with all the advanced functions you love. Including Bluetooth connectivity, Solar charging, high-brightness LED light and a range of other convenient functions, this is a timepiece that delivers on style and practical utility.

Functions:
- Bluetooth enabled
- Solar power charging system
- 5 daily alarms
- Hour signal
- Stopwatch
- Countdown timer
- World Time
- Hand shift mode

Features:
- 10M shock resistant
- Vibration resistant
- Low temperature resistant
- 200M water resistant
- Mineral glass
- Lightweight/slim case
- Dimensions: 49.8 x 44.4 x 12.8 mm
- Double LED light
- Auto calendar
- Neobrite hands
- Day of the week display

MRG-B2100

MR-G, the ultimate example of luxury Japanese watchmaking combined with the renowned and trusted durability of G-SHOCK.

Introducing the premium addition to the 2100 series. The MRG-B2100 is the first of its kind under the MR-G name. Combining the iconic octagonal bezel with the latest in state-of-the-art materials, hand-assembled and polished in Yamagata, Japan. Each component is individually polished before assembly, creating a timepiece that is sophisticated yet tough down to the finest detail. A dial like no other, inspired by traditional Japanese kigumi woodworking, the luxurious dial expresses our passion for time-honoured Japanese aesthetics and craftsmanship.

Functions:
- Solar power charging system
- Radio controlled MB6
- Bluetooth connectivity
- Auto hand correction
- Power save mode
- Neobrite hands
- LED light

Features:
- 10M shock resistant
- Vibration resistant
- Magnetic resistant
- Low temperature resistant
- 200M water resistant
- Sapphire glass – anti reflective coating
- Titanium – Cobarion case and bezel
- Date indicator
- Day of the week
- Auto calendar

Elevate Your Wrist Game with G-SHOCK 2100

The best-selling GA-2100, is an evolution of the origin from 1983 and sets a new standard of design for G-SHOCK. The 2100 range is the perfect mix of toughness, style, and innovation. From standard resin watches to the premium full-metal range, each model brings indestructible durability with functions – depending on the models – including Carbon Core Guard, Solar power tech, Bluetooth connectivity and much more.

Find out more about the smaller G-SHOCK watches like Baby-G or GMA-P2100 series in our G-SHOCK Size Guide blog.

Discover the collection, select your style and become part of the G-SHOCK family.

Explore our G-SHOCK blog and G-TIPS for more guidance, tips and inspiration.