Casio G-Shock G-Steel GST-B1000-1AER

The G-STEEL GST-B1000 combines the strength of metal with the lightness and comfort of a urethane strap for a modern and versatile look. The sharp-lined metal bezel gives it an urban and sophisticated character, while the carbon-reinforced resin case protects the module from impact.

The compact, slim design maintains the iconic G-SHOCK toughness, with the characteristic brick pattern inspired by the first G-SHOCK. The black dial expresses a decisive character, while the blue version with a vapor-deposited finish creates refined reflections in the light.

Bluetooth®, Tough Solar, and a comfortable fit designed for everyday use, from professional environments to leisure, complete the features.

Technical Specifications

Case

Dimensions: 46.9 × 44.2 × 11.6 mm
Weight: 58 g
Case and bezel material: Bio-based carbon / Stainless steel
Structure: Shock resistant; Carbon Core Guard structure
Water resistance: 20 bar (200 meters)

Time adjustment

Bluetooth: Smartphone link for auto time adjustment

Power supply

Technology: Tough Solar (solar powered)

Smartphone link and app

Mobile Link: Wireless linking via Bluetooth®
App: CASIO WATCHES
App functions: Auto time adjustment, simple watch settings, time & place, phone finder function

Glass

Type: Mineral glass

Crown

Type: Screw-lock crown

Strap

Material: Bio-based resin
Adjustable length: 145–215 mm

Exterior features

Luminescence: Neobrite

Stopwatch

Type: 1-second stopwatch
Measuring capacity: 29'59''30
Measuring mode: Elapsed time

Timer

Type: Countdown timer
Measuring unit: 1 second
Countdown range: 30 minutes
Countdown start time setting range: 1 to 30 minutes
Increments: 1-minute

Alarm and hourly time signal

Alarm: Daily alarm

Illumination

Type: LED light Super Illuminator
Function: Afterglow
LED color: White

Calendar

Type: Full auto-calendar
Validity: Up to year 2099

Power saving

Function: Hands stop to save power when the watch is left in the dark

Battery status display

Warning: Battery level indicator

Run time

Normal use: Approx. 5 months on rechargeable battery after full charge and without further exposure to light
Power saving: Approx. 18 months on rechargeable battery when stored in total darkness with the power saving function ON after full charge

Accuracy

Accuracy: ±15 seconds per month (with no Mobile Link function)

Time indication

Analog: 3 hands (hour, minute, second; minute hand moves every 10 seconds). 2 dials for 24-hour indication and day.
Digital: Date display

Date

Display: Date