Casio Duro vs Casio G-Shock

Side-by-side comparison of specifications and features

CasioDuro

MDV106-1AV

CasioG-Shock

GMA-S2100 (small)

Key Differences

Best Value

Casio Duro (MDV106-1AV)

Starting from $90

Biggest Price Drop

Casio Duro (MDV106-1AV)

-0.8% in 30 days

Price Comparison

Casio Duro

MSRP

$85

New

$90

Used

$54

Casio G-Shock

MSRP

$150

New

$128

Used

$103

MSRP New (Amazon) Used (eBay)

Comparison of Casio Duro, Casio G-Shock
Specification	Casio Duro	Casio G-Shock
Pricing
MSRP	$85	$150
New Price	$90	$128
Used Price (Low)	$54	$103
Used Price (High)	$297	$866
30-Day Trend	↓ -0.8%	↑ +3.6%
Used Price Range	$54 - $297	$103 - $866
Identity
Reference	MDV106-1AV	GMA-S2100 (small)
Nickname	N/A	N/A
Style	Diver, Tool	Ana-Digi, Sports, Tool
Release Era	2010s	1980s
Dimensions
Diameter	44mm	42.9mm
Thickness	12mm	N/A
Lug Width	22mm	N/A
Lug to Lug	48mm	N/A
Movement
Movement	Quartz	Quartz
Power Reserve / Battery	N/A	N/A
Accuracy	N/A	N/A
Case
Case Material	Resin	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

If you are deciding between Casio Duro and Casio G-Shock, the real decision is usually about 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

Casio G-Shock is a better fit for low-maintenance daily wear, ana-digi styling.

Key Differences

Movement and upkeep

Casio Duro: quartz movement

Casio G-Shock: 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 · L2L 48mm

Casio G-Shock: 42.9mm

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: 200m

Water resistance is similar on paper, so focus on fit, features, and price instead.

Price and value

Casio Duro: $90

Casio G-Shock: $128

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: ana-digi

Casio Duro leans more diver, while Casio G-Shock pulls toward ana-digi use case — pick the one that matches how you will actually wear it.

Crystal and materials

Casio Duro: mineral crystal · resin

Casio G-Shock: 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 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 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.

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Casio Duro

Check Price on AmazonOpens in new tab · Price may vary

Check Price on eBayFrom $103 · Live listings

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Casio G-Shock

Check Price on AmazonOpens in new tab · Price may vary

Check Price on eBayFrom $137 · Live listings

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.