Casio Duro vs Casio G-Shock GA-2100
Side-by-side comparison of specifications and features
Key Differences
Price Comparison
| Specification | Casio Duro | Casio G-Shock GA-2100 |
|---|---|---|
| Pricing | ||
| MSRP | $85 | $120 |
| New Price | $79 | $108 |
| Used Price (Low) | $65 | $65 |
| Used Price (High) | $315 | $360 |
| 30-Day Trend | ↑ +0.8% | ↓ -4.6% |
| Used Price Range | $65 - $315 | $65 - $360 |
| Identity | ||
| Reference | MDV-106 | GA-2100-1A1 |
| Nickname | N/A | N/A |
| Style | Diver, Casual | Ana-Digi, Sports, Tool |
| Release Era | 2020s | 2010s |
| Dimensions | ||
| Diameter | 44mm | 45.4mm |
| Thickness | N/A | 11.8mm |
| Lug Width | N/A | 22mm |
| Lug to Lug | N/A | 47mm |
| Movement | ||
| Movement | Quartz | Quartz |
| Power Reserve / Battery | N/A | N/A |
| Accuracy | N/A | N/A |
| Case | ||
| Case Material | Stainless Steel | Resin |
| Crystal | Mineral Crystal | Mineral Crystal |
| Water Resistance | 200m (diving) | 200m (diving) |
| Bezel | Unidirectional rotating | Fixed |
| Dial | ||
| Dial Color | Black | Black |
| Luminous | Yes | Yes |
| Community | ||
| Review Rating | N/A | N/A |
| In Collections | N/A | N/A |
| On Wishlists | N/A | N/A |
| Forum Threads | N/A | N/A |
Quick Summary
Casio Duro and Casio G-Shock GA-2100 can look close on a spec sheet, yet the tradeoffs that matter most are usually wrist presence versus easier fit, diver character versus ana-digi versatility. Start with fit first — case width and lug-to-lug usually matter more than secondary features if wrist comfort is a concern.
How to choose
The biggest practical difference is usually movement and upkeep. Start with wrist fit and movement preference, then use water resistance and price to break the tie.
Casio Duro
Casio Duro is a better fit for low-maintenance daily wear, diver styling.
Casio G-Shock GA-2100
Casio G-Shock GA-2100 is a better fit for low-maintenance daily wear, ana-digi styling.
Key Differences
Movement and upkeep
Casio Duro: quartz movement
Casio G-Shock GA-2100: quartz movement
Both use the same movement type, so maintenance differences are limited and fit or feature details should decide the purchase.
Size and wearability
Casio Duro: 44mm
Casio G-Shock GA-2100: 45.4mm · L2L 47mm
Fit is a real separator here — compare case width and lug-to-lug before deciding, especially if wrist comfort matters more than headline features.
Water resistance
Casio Duro: 200m
Casio G-Shock GA-2100: 200m
Water resistance is similar on paper, so focus on fit, features, and price instead.
Price and value
Casio Duro: $79
Casio G-Shock GA-2100: $108
There is a real price gap here — treat the more expensive option as an upgrade decision and confirm whether the extra spend buys something you will notice in weekly use.
Style and use case
Casio Duro: diver
Casio G-Shock GA-2100: ana-digi
Casio Duro leans more diver, while Casio G-Shock GA-2100 pulls toward ana-digi use case — pick the one that matches how you will actually wear it.
Crystal and materials
Casio Duro: mineral crystal · steel
Casio G-Shock GA-2100: mineral crystal · resin
Materials are broadly similar, so finish, fit, and price will matter more than the materials list alone.
Choose Casio Duro If...
- You are specifically shopping for a diver style watch.
- You want the lower current entry price.
Choose Casio G-Shock GA-2100 If...
- You are specifically shopping for a ana-digi style watch.
- You are comfortable paying more for a stronger feature set.
Price and Value Notes
Casio Duro is often the value play at current pricing, while Casio G-Shock GA-2100 makes more sense if you will use its extra features regularly.
There is a real price gap here — treat the more expensive option as an upgrade decision and confirm whether the extra spend buys something you will notice in weekly use.
Where to Check Deals
Check current deals on Amazon and eBay using the buttons below — listing prices, seller quality, and condition can change quickly.
Check current deals on Amazon and eBay
Prices change often, so compare the latest listings and condition options before you buy.
WatchCompared may earn a commission from qualifying purchases through affiliate links. This does not change your price.
Casio Duro
Affiliate links — WatchCompared earns a commission on qualifying purchases. This doesn't affect your price.
Casio G-Shock GA-2100
Affiliate links — WatchCompared earns a commission on qualifying purchases. This doesn't affect your price.
Comparison FAQ
Which one is better for smaller wrists?
Start with case width and lug-to-lug. The watch that looks smaller on paper is often the safer choice, but lug shape and thickness still affect how it wears.
Which is better for swimming or rough daily wear?
Use the water resistance row as the first filter. Higher ratings generally give more flexibility for swimming and water exposure, but strap choice and overall condition still matter.
Should I choose based on price alone?
Price matters, but the better buy is the watch that matches your fit, feature priorities, and use case. Check live listings first, then decide whether the price gap actually changes the ownership experience.
Related Research Paths
Watch Comparator
Start a new multi-watch comparison
Compare Watch Prices
US-focused price comparison workflow
Related Budget Page
Compare similar watches in the same price band
Watch Buying Guides
Read movement, fit, and buying guides before deciding
Smartwatch Compare Hub
Compare Apple, Garmin, Samsung, and more if you are cross-shopping smartwatches
Watch FAQ
Movement, WR, and beginner questions
Related Comparisons
Compare toolMore Comparison Tools & Guides
Continue comparing specs and pricing, or start a new shortlist with the comparison tool and browse pages.
Casio Duro
Affiliate links — WatchCompared earns a commission on qualifying purchases. This doesn't affect your price.
Casio G-Shock GA-2100
Affiliate links — WatchCompared earns a commission on qualifying purchases. This doesn't affect your price.
You can compare up to 10 watches. Browse watches and click "Add to Compare" to add more.