Casio G-Shock GA-2100 (CasiOak) strap size
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Proprietary fit. The Casio G-Shock GA-2100 (CasiOak) (GA-2100, GA-B2100) uses a proprietary strap fitting and a 45.4mm case, so standard spring bar straps do not fit without a model specific strap or adapter.
| Brand | Casio |
|---|---|
| Model | G-Shock GA-2100 (CasiOak) |
| References | GA-2100, GA-B2100 |
| Case size | 45.4mm |
| Lug width | Proprietary fit |
| Stock bracelet or strap | Resin strap |
| Strap styles that work | G-Shock adapter plus NATO, G-Shock adapter plus rubber |
Fit notes
Proprietary mount with 16mm spring bar holes. Casio and others sell adapters that let you use 20mm or 22mm straps.
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