Casio G-Shock GA-B2100 CasiOak vs Timex Q Timex Reissue
Two divers compared — ~$144 vs ~$140
Quick Verdict
The Timex Q Timex Reissue (~$140) delivers Timex Quartz technology at $4 less than the Casio G-Shock GA-B2100 CasiOak (~$144). The G-Shock GA-B2100 CasiOak justifies its premium with Made in Japan heritage and Quartz Module 5611 (Tough Solar + Bluetooth). Both represent excellent choices in the diver category.
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Specifications Compared
| Feature | Casio G-Shock GA-B2100 CasiOak | Timex Q Timex Reissue |
|---|---|---|
| Price | ~$144 | ~$140 |
| Case Size | 44.4mm | 38mm |
| Movement | Quartz Module 5611 (Tough Solar + Bluetooth) | Quartz |
| Caliber Type | Casio Quartz (Solar-Powered) | Timex Quartz |
| Power Reserve | — | — |
| Water Resistance | 200m (20 ATM) | 50m (5 ATM) |
| Crystal | Mineral Glass | Acrylic Crystal |
| Case Material | Carbon Core Guard Resin | Stainless Steel |
| Origin | Made in Japan | Assembled in Philippines |
Category-by-Category Analysis
Design & Aesthetics
Casio's design language vs Timex's approach
Movement & Performance
Quartz Module 5611 (Tough Solar + Bluetooth) vs Quartz
Wearability & Fit
44.4mm vs 38mm — different wrist presence
Value & Cost of Ownership
Timex is $4 more affordable
Water Resistance
200m (20 ATM) vs 50m (5 ATM)
Our Verdict
Casio
G-Shock GA-B2100 CasiOak
Choose the Casio G-Shock GA-B2100 CasiOak if you prioritize Casio Quartz (Solar-Powered) engineering, Made in Japan craftsmanship, and 200m (20 ATM) water resistance. At ~$144, it delivers Quartz Module 5611 (Tough Solar + Bluetooth) with solid power reserve.
Check Price on AmazonTimex
Q Timex Reissue
Choose the Timex Q Timex Reissue if you value Timex Quartz technology, Assembled in Philippines heritage, and 38mm proportions. At ~$140, the Quartz with ample power reserve makes it a compelling choice.
Check Price on AmazonThe Bottom Line
The Casio G-Shock GA-B2100 CasiOak and Timex Q Timex Reissue represent two distinct approaches to the diver category — the Casio bringing Made in Japan tradition while Timex delivers Assembled in Philippines engineering.

