G-SHOCK
GBM-2100RH-1A
HK$3,080
Out of stock
SKU
GBM-2100RH-1A
Say hello to the fourth Rui Hachimura signature G-SHOCK!
Jump into the future of tough, rugged watches with this signature timepiece inspired by professional basketball player Rui Hachimura.
This collaboration model is based on the GBM-2100, with bold metal bezel, solar charging, and Bluetooth® connectivity. Touches of red — a G-SHOCK brand color that also evokes Hachimura’s passion for the game — are added to set off the gold color of the dial, which features a basketball-court motif. The black band highlights the watch face’s powerful impact and pulls the design together for a timepiece that projects focus and strength.
Hachimura’s original logo featuring the symbol 八 (hachi in Japanese, meaning “eight”) is engraved on the case back, and the side button at the 8 o’clock position is laser engraved with the hachi symbol, as well. These and other Hachimura-inspired symbols are sprinkled throughout the design, for a collaboration worthy of a true global basketball sensation.
The shock-resistant construction you expect from a G-SHOCK in a design as sharp, sporty, and fearless as Hachimura himself.
- Case Size (L × W × H): 49.3 × 44.4 × 11.9 mm
- Weight: 78 g
- Case and Bezel Material: Bio-based Resin / Stainless steel
- Band: Bio-based resin band
- Construction: Shock Resistant
- Water Resistance: 200-meter water resistance
- Power Supply and Battery Life: Tough Solar (Solar powered)
- Smartphone Link Feature:
- Mobile link (Wireless linking using Bluetooth®)
- Apps: CASIO WATCHES
- App Connectivity Features: Auto time adjustment, Easy watch setting, Approximately 300 world time cities, Time & place reminder, Phone finder
- Glass: Mineral Glass
- Surface Treatment: Black ion plated bezel
- Compatible Band Size: 145 to 215 mm
- Other Features: Neobrite
- World Time:38 time zones (38 cities + coordinated universal time); Auto summer time (DST) switching; Home city/world time city swapping
- Stopwatch: 1/100-second stopwatch; Measuring capacity: 00'00''00~59'59''99 (for the first 60 minutes); 1:00'00~23:59'59 (after 60 minutes); Measuring unit: 1/100 second (for the first 60 minutes); 1 second (after 60 minutes); Measuring modes: Elapsed time, lap/split time
- Timer: Countdown timer; Measuring unit: 1 second; Countdown range: 60 minutes; Countdown start time setting range: 1 second to 60 minutes (1-second increments and 1-minute increments)
- Alarm/Hourly Time Signal: 5 daily alarms; Hourly time signal
- Light: Double LED light; LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow); LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
- Light Color: LED: White
- Calendar: Full auto-calendar (to year 2099)
- Mute Feature: Button operation tone on/off
- Energy Saving Feature: Power Saving (display goes blank to save power when the watch is left in the dark)
- Battery Display/Alert: Battery level indicator
- Run Time: Approx. battery operating time: 7 months on rechargeable battery (operation period with normal use without exposure to light after charge); 18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
- Accuracy: ±15 seconds per month (with no mobile link function)
- Other Features:
- Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents)
- 12/24-hour format
- Date/month display swapping
- Day display (days of the week selectable in six languages)
- Regular Timekeeping:
- Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (battery level, mode)
- Digital: Hour, minute, second, pm, month, date, day
| Brand | G-SHOCK |
|---|---|
| Features | RUI HACHIMURA SIGNATURE MODEL Shock resistant 20 bar water resistant |
| Collection | G-SHOCK |
| Type | Digital + Analog |
| Product Launch Date | Sep 2024 |
Say hello to the fourth Rui Hachimura signature G-SHOCK!
Jump into the future of tough, rugged watches with this signature timepiece inspired by professional basketball player Rui Hachimura.
This collaboration model is based on the GBM-2100, with bold metal bezel, solar charging, and Bluetooth® connectivity. Touches of red — a G-SHOCK brand color that also evokes Hachimura’s passion for the game — are added to set off the gold color of the dial, which features a basketball-court motif. The black band highlights the watch face’s powerful impact and pulls the design together for a timepiece that projects focus and strength.
Hachimura’s original logo featuring the symbol 八 (hachi in Japanese, meaning “eight”) is engraved on the case back, and the side button at the 8 o’clock position is laser engraved with the hachi symbol, as well. These and other Hachimura-inspired symbols are sprinkled throughout the design, for a collaboration worthy of a true global basketball sensation.
The shock-resistant construction you expect from a G-SHOCK in a design as sharp, sporty, and fearless as Hachimura himself.
- Case Size (L × W × H): 49.3 × 44.4 × 11.9 mm
- Weight: 78 g
- Case and Bezel Material: Bio-based Resin / Stainless steel
- Band: Bio-based resin band
- Construction: Shock Resistant
- Water Resistance: 200-meter water resistance
- Power Supply and Battery Life: Tough Solar (Solar powered)
- Smartphone Link Feature:
- Mobile link (Wireless linking using Bluetooth®)
- Apps: CASIO WATCHES
- App Connectivity Features: Auto time adjustment, Easy watch setting, Approximately 300 world time cities, Time & place reminder, Phone finder
- Glass: Mineral Glass
- Surface Treatment: Black ion plated bezel
- Compatible Band Size: 145 to 215 mm
- Other Features: Neobrite
- World Time:38 time zones (38 cities + coordinated universal time); Auto summer time (DST) switching; Home city/world time city swapping
- Stopwatch: 1/100-second stopwatch; Measuring capacity: 00'00''00~59'59''99 (for the first 60 minutes); 1:00'00~23:59'59 (after 60 minutes); Measuring unit: 1/100 second (for the first 60 minutes); 1 second (after 60 minutes); Measuring modes: Elapsed time, lap/split time
- Timer: Countdown timer; Measuring unit: 1 second; Countdown range: 60 minutes; Countdown start time setting range: 1 second to 60 minutes (1-second increments and 1-minute increments)
- Alarm/Hourly Time Signal: 5 daily alarms; Hourly time signal
- Light: Double LED light; LED light for the face (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow); LED backlight for the digital display (Super illuminator, selectable illumination duration (1.5 seconds or 3 seconds), afterglow)
- Light Color: LED: White
- Calendar: Full auto-calendar (to year 2099)
- Mute Feature: Button operation tone on/off
- Energy Saving Feature: Power Saving (display goes blank to save power when the watch is left in the dark)
- Battery Display/Alert: Battery level indicator
- Run Time: Approx. battery operating time: 7 months on rechargeable battery (operation period with normal use without exposure to light after charge); 18 months on rechargeable battery (operation period when stored in total darkness with the power save function on after full charge)
- Accuracy: ±15 seconds per month (with no mobile link function)
- Other Features:
- Hand shift feature (Hands move out of the way to provide an unobstructed view of digital display contents)
- 12/24-hour format
- Date/month display swapping
- Day display (days of the week selectable in six languages)
- Regular Timekeeping:
- Analog: 2 hands (hour, minute (hand moves every 20 seconds)), 1 dial (battery level, mode)
- Digital: Hour, minute, second, pm, month, date, day
| Brand | G-SHOCK |
|---|---|
| Features | RUI HACHIMURA SIGNATURE MODEL Shock resistant 20 bar water resistant |
| Collection | G-SHOCK |
| Type | Digital + Analog |
| Product Launch Date | Sep 2024 |





