Casio G-SHOCK GA-B001/ GA-B001G

Casio expands its G-SHOCK family of shock-proof watches by presenting new models with integrated bezel and band construction.

Casio G-SHOCK GA-B001 watch with integrated bezel and band

Both GA-B001 and GA-B001G come with an exterior structure to achieve an integrated bezel and band construction in a shock-resistant watch.

Presently four timepieces are available in this new G-SHOCK series: GA-B001-1AER, GA-B001-4AER, GA-B001G-1AER and GA-B001G-2AER.

Casio G-SHOCK GA-B001-1AER
Casio G-SHOCK GA-B001-1AER

These are the first Casio G-SHOCK watches to have this innovative structure, which comprises two separate components that connect at the 9 and 3 o’clock positions. The molded construction follows the lines of the wrist, minimizing the space between the wrist and watch for an enhanced fit.

Casio G-SHOCK GA-B001-4AER
Casio G-SHOCK GA-B001-4AER

They stand out with a futuristic geometric dial design and round index marks. The Casio G-Shock GA-B001 models feature the black G-SHOCK brand color and a new shade of red, and the GA-B001G models employ gradated color print on translucent materials for the bezel and band.


These watches are all equipped with Mobile Link features for pairing with a smartphone via Bluetooth®. When used with the dedicated CASIO WATCHES app, the watch automatically adjusts to the correct time.


In addition, the App information function sends notifications on the watch when the app receives updates on new products and other information.

Technical details

GA-B001-1AER: Black
GA-B001-4AER: Red
GA-B001G-1AER: Black × Red
GA-B001G-2AER: Black × Blue

Construction: Shock-resistant with Carbon Core Guard structure
Case / bezel material: Carbon / Resin
Integrated bezel, Mineral glass
Size of case: 42.5 × 46.0 × 13.8 mm
Water Resistance: 20 bar

Resin band

Communication Specifications
Communication Standard: Bluetooth® low energy
Signal Range: Up to 2 meters (may differ depending on surrounding conditions)

World Time
38 time zones (38 cities + coordinated universal time), daylight saving on/off, auto summer time (DST) switching, home city/world time city swapping

1/100 second (00’00”00~59’59”99) /1 second (1:00’00” ~23:59’59”); measuring capacity: 23:59’59.99″; measuring modes: elapsed time, split time, 1st and 2nd place times

Countdown Timer
Measuring unit: 1 second (maximum 24 hours)

5 daily alarms; hourly time signal

Mobile Link Features (Wireless Linking with Bluetooth® Devices)
Auto time adjustment
Easy watch setting
Approximately 300 world time cities
App information
Time & place
Phone finder

Other Functions
Hand shift feature; date/month display swapping; day display (in English, Spanish, French, German, Italian or Russian); full auto-calendar; 12/24-hour format; button operation tone on/off; double LED light (Super Illuminator and afterglow: 1.5 seconds or 3 seconds)

Accuracy at Normal Temperature
±15 seconds per month

Battery Life
Approx. 2 years on SR726W × 2

Total Weight
Approx. 51g