Side by side

Casio GMA-S2100vsSwatch Cma 2 13

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Add a watch
GMA-S2100
CasioGMA-S2100
MSRP $110
See the full GMA-S2100
Cma 2 13
SwatchCma 2 13
MSRP $105
See the full Cma 2 13
Buy from Casio ↗
Buy used on eBay ↗
Buy from Swatch ↗
Buy used on eBay ↗

Some links are affiliate links — lug2lug may earn a commission at no extra cost to you. Disclosures

At a glance

15 of 29 specs differ
Diameter
GMA-S210042.9mm
Cma 2 1341mm
Power Reserve
GMA-S2100—
Cma 2 13—
Water Resistance
GMA-S2100200m
Cma 2 1330m
MSRP
GMA-S2100$110
Cma 2 13$105

Full specifications

Case

7 specs
Category
Sport
Mechanical
Diameter
42.9mm
41mm
Thickness
11.2mm
9.85mm
Lug-to-Lug
46.2mm
47.4mm
Material
Carbon / Resin
Polymer
Finish
—
Polymer
Water Resistance
200m
30m

Crystal & Dial

3 specs
Crystal
Mineral
—
AR Coating
No
—
Dial Color
Black
White

Movement

4 specs
Caliber
—
—
Power Reserve
—
0h
Hacking
No
Yes
Hand-winding
No
Yes

Pricing

1 specs
MSRP
$110
$105
Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Bertucci D-3T RETROFORM EPIC
Bertuccimicro

D-3T RETROFORM EPIC

Ref. 17015
42mm·Quartz
$345MSRP
—Used
Makydo Ash Grey
Makydomicro

Ash Grey

2 variantsSeries
40mm·Quartz
—MSRP
—Used
Bertucci A-3P Optic White
Bertuccimicro
Ultimate Field Watch

A-3P Optic White

Ref. 13391
42mm·Quartz
$95MSRP
—Used
Nuncier MT Silver 40.5mm BL
Nunciermicro

MT Silver 40.5mm BL

40.5mm·Quartz
$519MSRP
—Used
Nuncier Al-Ittihad Origen Steel
Nunciermicro

Al-Ittihad Origen Steel

40.5mm·Quartz
$858MSRP
—Used
Timex Easy Reader Classic 38mm Leather Strap Watch
Timex

Easy Reader Classic 38mm Leather Strap Watch

42mm·Quartz·200m WR
$85MSRP
—Used
Citizen Garrison
Citizen
Eco-Drive

Garrison

5 watches · 6 variantsGarrison
43mm·Solar·100m WR
$206MSRP
—Used
Specht & Sohne Quartz - Black Color
Specht & Sohnemicro

Quartz - Black Color

2 variantsSeries
40mm·Quartz·100m WR
$182MSRP
—Used
All alternatives to the GMA-S2100 →All alternatives to the Cma 2 13 →
Explore the full catalog
DiscussionNot started
Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.

Specht & Sohne Specht & Söhne SP0006Q QuartzvsSwatch Cma 2 13Jorg Gray Watches JG8400vsSwatch Cma 2 13Sangin Instruments Kinetic II ExpeditionvsSwatch Cma 2 13Elliot Brown REORG x EB HOLTON LIMITED EDITIONvsSwatch Cma 2 13Casio GMA-S2100vsNuncier Al-Ittihad Origen SteelCasio GMA-S2100vsSequent SolarCharger
Edit this comparisonAdd another watchExplore more 40–44mm watches