G-SHOCK GBD-800UC-3ER

Secure, comfortable fit

At just 59g, it’s lightweight enough for all-day wear, with a design that stays secure during training. The strap and fit are built for movement, helping it stay in place through runs, workouts and long shifts.

Built for training and active use
Whether you’re on shift, in the gym or tracking daily movement, you need a watch that keeps up. The G-SHOCK GBD-800 is designed for exactly that, combining proven durability with built-in fitness tracking and performance features.

Durable performance, ready for movement
Shock resistant construction and 200 metre water resistance give you the confidence to train hard and handle demanding environments. Built to take repeated impact and movement without compromising reliability.

Clear, easy-to-read display
The large digital display makes it quick to check time, stats and progress at a glance. Designed for usability in fast-paced situations where you don’t have time to second guess.

Performance features that actually help
- Everything is built around activity and structure:
- Step tracking with daily progress display
- Interval timers for structured workouts
- Stopwatch with lap memory (up to 200 records)
- 5 daily alarms with hourly signal
- Built to support training, routines and staying on schedule.

Track your activity
A built-in 3-axis accelerometer tracks steps, movement and activity levels throughout the day. Set goals, monitor progress and keep performance consistent over time.

Stay connected and accurate
Bluetooth connectivity links to the CASIO WATCHES app, allowing automatic time updates, activity logs and easy setting adjustments. Keeps everything accurate without manual input.

Visibility when it matters
Super Illuminator LED backlight with auto light ensures the display stays visible in low-light environments. Designed for night use, early starts and dim training conditions.

Reliable, low-maintenance performance
A durable resin build, mineral glass and up to 3 years battery life mean it’s built to perform without constant attention. Accuracy remains within ±15 seconds per month when not connected.

Sport-focused design
Finished in a utility green colourway, it’s built to match both training gear and everyday wear. A functional, performance-driven G-SHOCK designed for active use.

World Time
Keep track of time across 31 time zones (48 cities + Coordinated Universal Time), with daylight saving settings available when needed.

Stopwatch
1/100-second stopwatch with multiple modes including elapsed time, split time and 1st–2nd place tracking. Measures up to 24 hours, with 1/100-second precision for the first hour and 1-second increments after.

Countdown Timer
Countdown timer adjustable from 1 second up to 24 hours. Flexible settings allow you to set time in seconds, minutes or hours depending on your needs.

Alarms & Hourly Signal
Includes 5 daily alarms and an hourly time signal to help keep your schedule on track throughout the day.

Lighting
Double LED illumination with Super Illuminator:
- LED light for the face
- LED backlight for the digital display

Both offer selectable illumination duration (1.5 or 3 seconds) with afterglow. White LED for clear visibility in low light.

Calendar
Full auto-calendar programmed up to the year 2099 for accurate, hassle-free date tracking.

Mute Function
Option to switch button operation tones on or off for silent use when required.

Accuracy
Maintains time within ±15 seconds per month for reliable performance.

Display Options
Switch easily between 12-hour and 24-hour formats. Analogue and digital displays show time, date and day at a glance.

Hand Shift Feature
Hands move out of the way when needed, giving you a clear and unobstructed view of the digital display.

Timekeeping Details
- Analogue: Hour and minute hands with day display dial
- Digital: Hour, minute, second, pm indicator, month and date

Dimensions
Case size: 54.1 × 48.6 × 15.5 mm
Weight: 59 g

Materials
Case and bezel: Resin
Band: Resin band

Construction
Shock resistant construction

Water Resistance
200 metre water resistance

Time Adjustment
Bluetooth connectivity allows the watch to link to your smartphone and automatically adjust the time

Battery Life
Approx. 3 years on CR2025

Sensor Features
- Step tracking using a 3-axis acceleration sensor (0 to 999,999 steps)
- Step goal progress display (1,000 to 50,000 step target range)
- Step count graph showing hourly activity for the past 7 hours
- Step indicator for activity tracking

Power Saving
Automatic sensor sleep mode after a period of inactivity

Glass
Mineral glass