Casio
G-Shock GA-B001 Carbon Core
Ref. GA-B001-1A
- Case diameter
- 46 mm
- Manufacturer spec
- Lug-to-lug
- 42.5 mm
- Manufacturer spec
- Thickness
- 13.8 mm
- Manufacturer spec
- Lug width
- —
- Not published
Retail price $84 (US, Oct 2026)
Ideal fit
How the G-Shock GA-B001 Carbon Core wears
Its lugs add only -3.5 mm to the 46 mm case, against 7 mm typical across the almanac, so it wears smaller than its diameter suggests.
On our fit model it sits best on wrists from 6" to 7" (15.2–17.8 cm); below 6" the lugs start to reach the edge of the wrist.
At 13.8 mm thick it is thicker than 83% of the 18 other digital watches we've measured, so expect it to sit tall on the wrist.
Will the G-Shock GA-B001 Carbon Core fit your wrist?
With a 42.5 mm lug-to-lug, here is how it wears across common wrist sizes. We estimate the flat top of each wrist from its circumference; measure yours for a closer answer in the fit finder.
| Wrist | Flat width (est.) | Fit |
|---|---|---|
| 6" | 47.2 mm | Ideal fit |
| 6.5" | 51.2 mm | Ideal fit |
| 7" | 55.1 mm | Ideal fit |
| 7.5" | 59.1 mm | Wears small |
| 8" | 63 mm | Wears small |
Specifications
- Reference
- GA-B001-1A
- Collection
- G-Shock
- Status
- In production
- Case material
- carbon / resin
- Crystal
- mineral
- Water resistance
- 200 m
- Bezel
- fixed resin bezel
- Strap / bracelet
- resin band
- Weight
- 51 g
- Style
- Digital, Sport
Movement
- Caliber
- Casio 5690
- Type
- quartz
- Accuracy
- +/-15 s/month (without mobile link)
More G-Shock references
- CasioG-Shock DW-5600EDW-5600E-1V
- Case
- 42.8 mm
- Lug-to-lug
- 48.9 mm
- Thick
- 13.4 mm
- CasioG-Shock DW-6900DW-6900-1V
- Case
- 50 mm
- Lug-to-lug
- 53.2 mm
- Thick
- 18.7 mm
- CasioG-Shock Full Metal GMW-B5000DGMW-B5000D-1
- Case
- 43.2 mm
- Lug-to-lug
- 49.3 mm
- Thick
- 13 mm
- CasioG-Shock GA-2100GA-2100-1A1 · “CasiOak”
- Case
- 45.4 mm
- Lug-to-lug
- 48.5 mm
- Thick
- 11.8 mm
- CasioG-Shock GA-B2100GA-B2100-1A
- Case
- 45.4 mm
- Lug-to-lug
- 48.5 mm
- Thick
- 11.9 mm
- CasioG-Shock GW-5000UGW-5000U-1
- Case
- 42.8 mm
- Lug-to-lug
- 48.9 mm
- Thick
- 13.5 mm
- CasioG-Shock GW-M5610UGW-M5610U-1
- Case
- 43.2 mm
- Lug-to-lug
- 46.7 mm
- Thick
- 12.7 mm
- CasioG-Shock Mudmaster GWG-B1000GWG-B1000-1A
- Case
- 52.1 mm
- Lug-to-lug
- 58.7 mm
- Thick
- 16.2 mm
Watches that wear the same size
Other watches within 1.5 mm of its lug-to-lug.
- CitizenEco-Drive Chandler (Garrison)BM8180-03E
- Case
- 37 mm
- Lug-to-lug
- 42.5 mm
- Thick
- 9.5 mm
- DoxaSUB 250T GMT Professional855.10.351.10
- Case
- 40 mm
- Lug-to-lug
- 42.9 mm
- Thick
- 10.8 mm
- RolexExplorer 36124270
- Case
- 36 mm
- Lug-to-lug
- 43 mm
- Thick
- 11.5 mm
- CartierSantos de Cartier MediumWSSA0029
- Case
- 35.1 mm
- Lug-to-lug
- 41.9 mm
- Thick
- 8.8 mm
- RolexOyster Perpetual 36126000
- Case
- 36 mm
- Lug-to-lug
- 43.1 mm
- Thick
- 11.7 mm
- RolexDatejust 36126234
- Case
- 36 mm
- Lug-to-lug
- 43.3 mm
- Thick
- 12 mm