Image not available$595
1 retailer
G-Shock "G-Steel" GM-2100 Series
The Casio G-Shock "G-Steel" GM-2100 Series is a 44.4 mm, 200 m water-resistant watch with a mineral crystal.
- Case
- 44.4 mm
- Water
- 200 m (656 ft)
- Movement
- Not published
- Thickness
- 11 mm
Image not availableColors: Silver
What the data says
- Lighter than 60% of the 20 other watches we list in the 42–46 mm range.
Computed from the specs below. How we write summaries.
Full specs
Last verified Oct 5, 2026
Casio’s own site doesn’t allow automated reading, so specs, prices and photos come from Long Island Watch’s product page (longislandwatch.com), a retailer that sells it. Unless marked otherwise, every spec is quoted from that page.
| Case diameter | 44.4 mm |
|---|---|
| Thickness | 11 mm |
| Lug to lug | 49.3 mm |
| Weight (manufacturer) | 0.16 lb (72 g) |
| Case | Resin |
| Crystal | Mineral |
| Strap | Resin Band |
| Water resistance | 200 m (656 ft) |
|---|---|
| Shock resistant | Yes |
| Display | Analog-digital |
|---|---|
| Backlight | Yes |
| Colorways | Silver |
|---|---|
| Warranty | 1 year |
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