The GA-2100 and GA-2110 are nearly identical except for one crucial difference: size. This guide will help you choose the right CasiOak for your wrist.
Size Comparison
| Dimension | GA-2100 | GA-2110 | Difference |
|---|---|---|---|
| Case Diameter | 45.4mm | 51.2mm | +5.8mm |
| Thickness | 11.8mm | 12.6mm | +0.8mm |
| Lug-to-Lug | 48.5mm | 52.8mm | +4.3mm |
| Weight | 51g | 58g | +7g |
Wrist Size Guide
| Wrist Size | Recommended |
|---|---|
| Under 6.5″ (165mm) | GA-2100 |
| 6.5″ – 7″ (165-178mm) | Either works |
| 7″ – 7.5″ (178-190mm) | Either works |
| Over 7.5″ (190mm) | GA-2110 |
Feature Differences
- GA-2100: 3 hands (hour, minute, second)
- GA-2110: 4 hands (adds sub-dial hand)
- Both: Same digital functions, same 200m water resistance
Mod Parts Compatibility
Good news: Most mod parts are compatible between both models.
Our Recommendation
Under 7″ wrist: GA-2100 for better proportions
Over 7.5″ wrist: GA-2110 for more presence
In between: Try both if possible, or go GA-2100 for classic proportions
Browse GA-2100 and GA-2110 products to compare pricing and availability.