G-SHOCK GA-2100-1AER

Name: G-SHOCK GA-2100-1AER
Brand: Casio
SKU: GA-2100-1AER
Price: 99.9 GBP
Availability: InStock

Casio | SKU: GA-2100-1AER

£99.90 ~~£109.99~~

DESCRIPTION

Built for everyday use

Whether you’re on patrol, responding to incidents or just need something reliable day to day, you want a watch that doesn’t get in your way. The G-SHOCK GA-2100 is built for exactly that, combining a slim, low-profile design with the durability you expect from G-SHOCK.

Tough without the bulk
Shock resistant construction and 200 metre water resistance give you the confidence to handle demanding conditions. The Carbon Core Guard structure adds strength while keeping the watch lightweight and just 11.8 mm thin.

Lightweight, low-profile design
At only 51 g, it sits comfortably under sleeves and gear without catching or getting in the way. Built for long shifts, daily wear and situations where bulky watches become a problem.

Clear, functional display
The analogue-digital combination gives you the best of both. Quick time checks with the hands, plus digital features when you need them. The hand shift function keeps the display clear when it matters.

Practical, no-nonsense features
World time, stopwatch, countdown timer and five daily alarms give you everything you need to stay on schedule, without unnecessary extras.

Reliable, everyday performance
With a durable resin and carbon build, mineral glass and up to 3 years battery life, it’s designed to perform consistently without needing constant attention.

FEATURES

World Time
31 time zones (48 cities + UTC) with daylight saving on/off, making it easy to track time across locations.

Stopwatch
1/100-second stopwatch with elapsed time, split time and 1st–2nd place tracking. Measures up to 24 hours.

Countdown Timer
Countdown timer adjustable from 1 second up to 24 hours, suitable for both daily use and longer timings.

Daily Alarms
5 daily alarms with hourly time signal to keep you on schedule.

LED Light
Double Super Illuminator LED with separate lighting for the face and digital display, selectable duration and afterglow for clear visibility in low light.

Full Auto Calendar
Pre-programmed calendar up to 2099 for accurate date tracking.

Mute Function
Option to turn button operation tones on or off for silent use.

Accuracy
Maintains ±15 seconds per month for reliable timekeeping.

Display Options
12/24-hour format with analogue and digital display showing time, date and day.

Hand Shift Feature
Hands move out of the way to provide a clear view of the digital display when needed

TECHNICAL DATA

Dimensions
Case size: 48.5 × 45.4 × 11.8 mm
Weight: 51 g

Materials
Case and bezel: Carbon / Resin
Band: Resin band

Construction
Shock resistant construction
Carbon Core Guard structure

Water Resistance
200 metres

Battery Life
Approx. 3 years (SR726W × 2)

Glass
Mineral glass

Fit
Compatible band size: 145 to 215 mm

DELIVERY AND SHIPPING

Royal Mail Tracked 48 (2-3 Working Days)

Royal Mail Tracked 24 (1-2 Working Days)

Our order cut-off time for same-day dispatching is 12:00 Midday

Your satisfaction is our priority, and we ensure every parcel reaches its destination promptly and securely. See more of our delivery information here

Quartz Movement

Every watch on this list uses a high-precision quartz movement
20 Bar Water Resistance

Every G-Shock is water resistant to 200 metres
Award Winning Resistance

Built to absorb impact from impacts, vibrations and stress
Illumination

Every G-Shock has a way to read the time in the dark

Most watches aren’t built for Duty.

G-SHOCK is built to take impact, handle pressure, and keep performing when it matters.

Carbon Core Guard durability

Shock resistant with a carbon-reinforced case, giving you strong impact protection without added weight. Built to handle knocks, drops and daily operational use.

G-Shock GA-2100-1AER tactical style watch built for everyday reliability

Low-profile, lightweight design

At just 11.8 mm thick and 51 g, it sits comfortably under sleeves and gloves. It won’t catch on kit, making it far more practical on shift than bulkier G-SHOCK models.

Built to handle demanding use, it delivers G-SHOCK shock resistance and 200 metre water resistance, giving you confidence on shift and in tough conditions.

Practical timekeeping tools including world time, stopwatch, countdown timer and multiple alarms keep you organised without unnecessary complexity, whether you’re on duty or off.

The analogue-digital display with double LED illumination ensures clear visibility in low light, while features like hand shift and a full auto calendar keep everything easy to read and ready when you need it.

Case size is 48.5 × 45.4 × 11.8 mm. It weighs 51 g, keeping it lightweight, slim and comfortable for all-day wear.

The case and bezel are made from carbon-reinforced resin, paired with a resin band built for daily use. Shock resistant construction with Carbon Core Guard structure provides added strength against knocks and impact.

Water resistance is rated to 200 metres for use in wet conditions. Battery life lasts approximately 3 years on SR726W × 2.

Mineral glass adds durability to the display. Fits wrist sizes from 145 to 215 mm.

G-Shock GA2100-1AER analog digital display with clear time readability

Built for long shifts

Stays secure, comfortable, and out of the way you will forget it is even there, whether you are on patrol or handling paperwork.

“Use this on every shift and it’s taken a fair few knocks already. Still works perfectly and the display is easy to read even at night.”

D. Harris

Specialist operator

“Been through rain, cold and plenty of rough use and it hasn’t let me down. Exactly what I needed"

B. Carter

Response Officer

“Needed something reliable for long shifts and this just does the job. Don’t have to think about it, battery lasts ages and it’s comfortable all day.”

J. paterlle

Security Officer

MORE FROM G-SHOCK

Explore customer favourites and the full G-SHOCK range, built to handle impact, pressure and daily wear across every model.

Find the right fit for your needs.
★★★★☆

View All G-Shock Watches

Why police choose g-shock

You need gear that works without thinking about it.

G-Shock watches are trusted by officers because they are built to handle impact, long shifts and unpredictable conditions. Shock resistant construction protects against knocks on duty, while 200m water resistance means rain, washing or full submersion is never a concern.

With long battery life or solar charging, you are not dealing with constant maintenance. Clear displays and backlighting make it easy to check the time instantly, even in low light or high-pressure situations.

It is simple. It works. It lasts.

WHY G-SHOCK?

G-SHOCK watches have built a reputation for exceptional durability, reliability and practical everyday performance. Designed to handle demanding conditions, they are a natural choice for police, security professionals and other uniformed services.

✓ Legendary shock-resistant construction

✓ 20 bar / 200 metre water resistance

✓ Durable, long-lasting design

✓ Digital and analogue options available

✓ Built for demanding everyday environments

Explore G-SHOCK