lug2lug
BrowseBrandsCompareDiscussionCommunity WatchesMy Watches
BrowseBrandsCompareDiscussionCommunity WatchesMy Watches
Theme
Popular microbrands:Christopher Ward·Baltic·anOrdain·Atelier Wen·Boldr·Bremont·Dan Henry·DOXABrowse all →
Best, by the specs:Best dress watches·Diver under $5,000·Chronograph under $5,000·Sport under $5,000·GMT under $5,000·Field under $1,000·Best tool watches·Pilot under $2,000All rankings →
Glossary:Lug-to-Lug·Water Resistance·Chronograph·GMT·Automatic·LumeBrowse all →
Tools:Collection tracker·Wrist-fit calculator·What should I buy?·Value retention rankings·iPhone app
Lug2Letter
Watches worth knowing about, weekly.
Curated discoveries, founder spotlights, and the occasional deep-dive.
Now on iPhone
Download on theApp Store
TermsPrivacyCopyrightDisclosuresContactContribute

Independent reference site · not affiliated with any brand · contains affiliate links

© 2026 Lug2Lug LLC · Prices are estimates and not offers

Browse/Alternatives/Casio GMA-S2100
Casio GMA-S2100
Finding alternatives to

Casio GMA-S2100

Ref. GMA-S2100

31 watches that match on case size, movement family, and price band. Sorted by how close the match is.

Case
42.9mm
Movement
Quartz
Category
Sport
MSRP
$110
The short answer

The closest alternative to the Casio GMA-S2100 is the Casio G-Shock GW-M5610 ($145) — same family (G-Shock) and Visually similar. From the independents, the Jorg Gray Watches JG8400 is the standout microbrand take — looks nearly identical and Quartz. Stepping up, the Tissot T-Race ($650) is where the same idea goes with a bigger budget.

ColourwayPick a colourway to match a specific dial
31 matches
Microbrand picks· 12

Independent makers covering the same brief — usually with something the mainstream brands don't.

Jorg Gray Watches JG8400
Jorg Gray Watchesmicro

JG8400

4 variantsSeries
44mm·Quartz·100m WR
$495MSRP
—Used
vsCompare with the Casio GMA-S2100
Memphis Belle Stingray
Memphis Bellemicro

Stingray

2 variantsSeries
42.5mm·Quartz·500m WR
$1,390MSRP
—Used
vsCompare with the Casio GMA-S2100
Jorg Gray Watches JG6800
Jorg Gray Watchesmicro

JG6800

3 variantsSeries
43mm·Quartz
$395MSRP
—Used
vsCompare with the Casio GMA-S2100
Specht & Sohne Specht & Söhne SP0006Q Quartz
Specht & Sohnemicro
SP0006Q

Specht & Söhne SP0006Q Quartz

5 variantsRef. SP0006Q1
42mm·Quartz
$168MSRP
—Used
vsCompare with the Casio GMA-S2100
Sangin Instruments Kinetic II Expedition
Sangin Instrumentsmicro

Kinetic II Expedition

43.5mm·Quartz·300m WR
$619MSRP
—Used
vsCompare with the Casio GMA-S2100
Elliot Brown HOLTON: 101-001
Elliot Brownmicro

HOLTON: 101-001

10 variantsSeries
43mm·Quartz·200m WR
$413MSRP
—Used
vsCompare with the Casio GMA-S2100
Roskopf Hurricane
Roskopfmicro

Hurricane

44mm·Quartz·100m WR
$100MSRP
—Used
vsCompare with the Casio GMA-S2100
AVI-8 Hawker Hunter Atlas Dual Time Chronograph
AVI-8micro

Hawker Hunter Atlas Dual Time Chronograph

13 variantsHawker
43mm·Quartz
$380MSRP
—Used
vsCompare with the Casio GMA-S2100
Undone Tachikoma
Undonemicro
Tachikoma Grey

Tachikoma

3 variantsSeries
41.8mm·Quartz·100m WR
$320MSRP
—Used
vsCompare with the Casio GMA-S2100
Islander Islander Rocky Point PVD Analog-Digital Watch with Black Dial #ISL-331
Islandermicro
Under $50

Islander Rocky Point PVD Analog-Digital Watch with Black Dial #ISL-331

43mm·Quartz·100m WR
$329MSRP
—Used
vsCompare with the Casio GMA-S2100
Sangin Instruments Professional
Sangin Instrumentsmicro

Professional

4 variantsSeries
43.5mm·Quartz·300m WR
$679MSRP
—Used
vsCompare with the Casio GMA-S2100
Elliot Brown 1 MI Holton limited edition quartz
Elliot Brownmicro

1 MI Holton limited edition quartz

2 variantsSeries
43mm·Quartz·200m WR
$438MSRP
—Used
vsCompare with the Casio GMA-S2100
Mainstream picks· 7

Established brands covering the same brief at a comparable price — same case size, similar movement family. Often the deciding click for a new buyer.

Casio G-Shock GW-M5610
Casio

G-Shock GW-M5610

Ref. GW-M5610-1JF
43.2mm·Solar·200m WR
$145MSRP
—Used
vsCompare with the Casio GMA-S2100
Casio EFV-650D
Casio
Edifice

EFV-650D

3 variantsEdifice
43.5mm·Quartz·100m WR
$120MSRP
—Used
vsCompare with the Casio GMA-S2100
Casio EFR-574DE
Casio
Edifice

EFR-574DE

42.3mm·Quartz·100m WR
$220MSRP
—Used
vsCompare with the Casio GMA-S2100
Citizen Garrison
Citizen
Eco-Drive

Garrison

Ref. AW1430
43mm·Solar·100m WR
$206MSRP
—Used
vsCompare with the Casio GMA-S2100
Swatch Hepcat
Swatch
Black

Hepcat

2 variantsBlack
42mm·Quartz
$200MSRP
—Used
vsCompare with the Casio GMA-S2100
Swatch Cma 2 13
Swatch

Cma 2 13

Ref. SUOZ327
41mm·Quartz
$105MSRP
—Used
vsCompare with the Casio GMA-S2100
Swatch Horale Restyled
Swatch

Horale Restyled

Ref. SUOZ268D
41mm·Quartz
$110MSRP
—Used
vsCompare with the Casio GMA-S2100
Pricier alternatives· 12

Where the same idea goes when budget isn't the constraint — luxury upgrades and step-ups.

Tissot T-Race
Tissot

T-Race

38/45mm
7 variantsT-Race
38/45mm·Quartz·100m WR
$650MSRP
—Used
vsCompare with the Casio GMA-S2100
Tissot PRC 200
Tissot
PR 100

PRC 200

2 variantsPRC 200
43mm·Quartz·200m WR
$595MSRP
—Used
vsCompare with the Casio GMA-S2100
Citizen Nighthawk
Citizen
Eco-Drive

Nighthawk

Ref. CA0295
42mm·Solar·200m WR
$431MSRP
—Used
vsCompare with the Casio GMA-S2100
Citizen Promaster Skyhawk A-T
Citizen

Promaster Skyhawk A-T

3 variantsPromaster
45mm·Quartz·200m WR
$596MSRP
—Used
vsCompare with the Casio GMA-S2100
Victorinox Journey 1884
Victorinox

Journey 1884

3 variantsJourney 1884
43mm·Quartz·200m WR
$750MSRP
—Used
vsCompare with the Casio GMA-S2100
Casio EQS-960PB
Casio
Edifice

EQS-960PB

44.5mm·Quartz·100m WR
$240MSRP
—Used
vsCompare with the Casio GMA-S2100
Tissot Supersport Chrono Basketball Edition
Tissot

Supersport Chrono Basketball Edition

45.5mm·Quartz·100m WR
$550MSRP
—Used
vsCompare with the Casio GMA-S2100
Citizen ATTESA
Citizen

ATTESA

4 variantsATTESA
44.6mm·Solar·100m WR
$2,250MSRP
—Used
vsCompare with the Casio GMA-S2100
Victorinox I.N.O.X. Chrono
Victorinox

I.N.O.X. Chrono

3 variantsINOX Chrono
43mm·Quartz·200m WR
$800MSRP
—Used
vsCompare with the Casio GMA-S2100
Victorinox I.N.O.X. Quartz
Victorinox

I.N.O.X. Quartz

5 variantsINOX Quartz
41mm·Quartz·200m WR
$600MSRP
—Used
vsCompare with the Casio GMA-S2100
Seiko Coutura
Seiko

Coutura

42mm·Quartz·100m WR
$550MSRP
—Used
vsCompare with the Casio GMA-S2100
TAG Heuer Formula 1 Chronograph faceted/octagonal SPEED chronograph 43mm (crown-guard case)
TAG Heuer

Formula 1 Chronograph faceted/octagonal SPEED chronograph 43mm (crown-guard case)

4 variantsFormula 1
44mm·Quartz·200m WR
$2,100MSRP
—Used
vsCompare with the Casio GMA-S2100
← Back to the Casio GMA-S2100Best Sport Watches Under $500 →Open the alternatives engine