lug2lug
BrowseCompareNewsCommunityMy Watches
BrowseCompareNewsCommunityMy 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 $2,000·Best tool watches·Pilot under $2,000All rankings →
Glossary:Lug-to-Lug·Water Resistance·Chronograph·GMT·Automatic·LumeBrowse all →
Tools:Collection tracker·Watch size chart·Wrist-fit calculator·Selling calculator·What should I buy?·Market index·iPhone app
Lug2Letter
Watches worth knowing about, weekly.
Curated discoveries, founder spotlights, and the occasional deep-dive.
Get the app
Download on theApp StoreGET IT ONGoogle Play
TermsPrivacyDelete accountCopyrightDisclosuresContactContribute

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

© 2026 Lug2Lug LLC · Prices are estimates and not offers

Watches/Alternatives/Casio GM-2100

Watch alternatives

Alternatives to the Casio GM-2100

Reference GM-2100

Keep what you like. Explore what could be different. Compare 48 catalog matches by dimensions, movement and price.

Explore the matches ↓View original watch ↗
Case diameter
44.4 mm
Lug-to-lug
49.3 mm
Movement
Quartz
Catalog MSRP
$220
Casio GM-2100The starting point
Your next watch starts with a shortlist.

Save favorites here, compare the details, and keep your collection with you in the app.

Explore the app ↗My watches ↗

Starting points

Choose the differences that matter to you.

Closest catalog matchAddiesdive AddiesKIN 40mm Crystallized Titanium Dial K00640 mm case, 4.4 mm narrowerSee the match ↓
Lower recorded MSRPPagani Design PD-1707$123 recorded MSRP, $97 lowerSee the match ↓
Shorter lug-to-lugTissot T-Race45 mm lug-to-lug, 4.3 mm shorterSee the match ↓

Calculated from catalog specifications and similarity signals. Prices are recorded MSRP in USD, not current retail offers. Missing measurements stay unknown.

Your priorities

Narrow these matches without leaving the page.

ColorwayPick a colorway to match a specific dial
48 matches

Microbrand picks· 12

Discover smaller makers with catalog similarities to this watch.

Filippo Loreti Watches Oscura All Black 45mm Leather
Filippo Loreti Watches

Oscura All Black 45mm Leather

  • $210 recorded MSRP, $10 lower
  • 45 mm case, 0.6 mm wider
  • Both use quartz movements
What changes

0.3 mm thinner case

View watch ↗
Luminox Pacific Diver 44mm
Luminox

Pacific Diver 44mm

  • 44 mm case, 0.4 mm narrower
  • Both use quartz movements
What changes

0.2 mm thicker case. $875 recorded MSRP, $655 higher

View watch ↗
Jorg Gray Watches JG8400
Jorg Gray Watches

JG8400

  • 44 mm case, 0.4 mm narrower
  • Both use quartz movements
What changes

0.2 mm thicker case. $495 recorded MSRP, $275 higher

View watch ↗
Compare models ↗
Luminox Navy SEAL Chronograph 45mm
Luminox

Navy SEAL Chronograph 45mm

  • 45 mm case, 0.6 mm wider
  • Both use quartz movements
What changes

3.2 mm thicker case. $845 recorded MSRP, $625 higher

View watch ↗
Luminox Pacific Diver Chronograph 44mm
Luminox

Pacific Diver Chronograph 44mm

  • 44 mm case, 0.4 mm narrower
  • Both use quartz movements
What changes

0.2 mm thicker case. $895 recorded MSRP, $675 higher

View watch ↗
Islander Rocky Point Analog-Digital Watch with Black Dial #ISL-327
Islander

Rocky Point Analog-Digital Watch with Black Dial #ISL-327

  • 43 mm case, 1.4 mm narrower
  • Both use quartz movements
What changes

0.6 mm thinner case. $449 recorded MSRP, $229 higher

View watch ↗
Compare models ↗
Elliot Brown CANFORD: 202-004
Elliot Brown

CANFORD: 202-004

  • 44 mm case, 0.4 mm narrower
  • 54 mm lug-to-lug, 4.7 mm longer
  • Both use quartz movements
What changes

1.7 mm thicker case. $413 recorded MSRP, $193 higher

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

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

  • 43 mm case, 1.4 mm narrower
  • Both use quartz movements
What changes

0.6 mm thinner case. $329 recorded MSRP, $109 higher

View watch ↗
Compare models ↗
Vero Watch Company Workhorse
Vero Watch Company

Workhorse

  • 44.5 mm case, 0.1 mm wider
  • 49.5 mm lug-to-lug, 0.2 mm longer
  • Both use quartz movements
What changes

1.7 mm thicker case. $425 recorded MSRP, $205 higher

View watch ↗
AVI-8 Hawker Harrier Dual Retrograde Chronograph
AVI-8

Hawker Harrier Dual Retrograde Chronograph

  • 44 mm case, 0.4 mm narrower
  • Both use quartz movements
What changes

$310 recorded MSRP, $90 higher

View watch ↗
Lum-Tec B73
Lum-Tec

B73

  • 44 mm case, 0.4 mm narrower
  • 51.5 mm lug-to-lug, 2.2 mm longer
  • Both use quartz movements
What changes

$463 recorded MSRP, $243 higher

View watch ↗
Compare models ↗
Filippo Loreti Watches Odyssey
Filippo Loreti Watches

Odyssey

  • 42 mm case, 2.4 mm narrower
  • Both use quartz movements
What changes

0.2 mm thicker case. $295 recorded MSRP, $75 higher

View watch ↗

Mainstream picks· 12

Established-brand matches. Compare the recorded dimensions, movement and price for each watch.

Citizen Nighthawk
Citizen

Nighthawk

  • 42 mm case, 2.4 mm narrower
What changes

Solar movement instead of quartz. $431 recorded MSRP, $211 higher

View watch ↗
Citizen Nighthawk
Citizen

Nighthawk

  • 43 mm case, 1.4 mm narrower
What changes

Solar movement instead of quartz. $431 recorded MSRP, $211 higher

View watch ↗
Casio EQS-960PB
Casio

EQS-960PB

  • 44.5 mm case, 0.1 mm wider
  • 50.1 mm lug-to-lug, 0.8 mm longer
  • Both use quartz movements
What changes

1.5 mm thicker case. $240 recorded MSRP, $20 higher

View watch ↗
Compare models ↗
Timex IRONMAN Adrenaline 46.5mm Resin Strap Watch
Timex

IRONMAN Adrenaline 46.5mm Resin Strap Watch

  • 46.5 mm case, 2.1 mm wider
  • Both use quartz movements
What changes

$229 recorded MSRP, $9 higher

View watch ↗
Casio ECB-2300D
Casio

ECB-2300D

  • 45.8 mm case, 1.4 mm wider
  • 50.2 mm lug-to-lug, 0.9 mm longer
  • Both use quartz movements
What changes

0.9 mm thinner case. $280 recorded MSRP, $60 higher

View watch ↗
Compare models ↗
Casio G-SHOCK G-STEEL GST-B500
Casio

G-SHOCK G-STEEL GST-B500

  • 48.9 mm case, 4.5 mm wider
  • 46.6 mm lug-to-lug, 2.7 mm shorter
What changes

Solar quartz movement instead of quartz. 1 mm thicker case

View watch ↗
Compare models ↗
Timex Expedition Tide-Temp-Compass 45mm Stainless Steel Bracelet Watch
Timex

Expedition Tide-Temp-Compass 45mm Stainless Steel Bracelet Watch

  • 45 mm case, 0.6 mm wider
  • Both use quartz movements
What changes

$289 recorded MSRP, $69 higher

View watch ↗
Compare models ↗
Citizen Perpetual Calendar Chronograph
Citizen

Perpetual Calendar Chronograph

  • 44 mm case, 0.4 mm narrower
What changes

Solar movement instead of quartz. $395 recorded MSRP, $175 higher

View watch ↗
Timex Waterbury Traditional Fly Back Chronograph 43mm Stainless Steel Bracel - TW2Y29800
Timex

Waterbury Traditional Fly Back Chronograph 43mm Stainless Steel Bracel - TW2Y29800

  • $187 recorded MSRP, $33 lower
  • 43 mm case, 1.4 mm narrower
  • Both use quartz movements
What changes

Lug-to-lug is not recorded for this match.

View watch ↗
Tissot Chrono L
Tissot

Chrono L

  • 42 mm case, 2.4 mm narrower
  • 42 mm lug-to-lug, 7.3 mm shorter
  • Both use quartz movements
What changes

0.8 mm thinner case. $425 recorded MSRP, $205 higher

View watch ↗
Seiko Essentials Chronograph
Seiko

Essentials Chronograph

  • 41.5 mm case, 2.9 mm narrower
  • 46.5 mm lug-to-lug, 2.8 mm shorter
  • Both use quartz movements
What changes

0.3 mm thicker case. $265 recorded MSRP, $45 higher

View watch ↗
Seiko Essentials Chronograph
Seiko

Essentials Chronograph

  • 40 mm case, 4.4 mm narrower
  • 45.8 mm lug-to-lug, 3.5 mm shorter
  • Both use quartz movements
What changes

0.3 mm thinner case. $415 recorded MSRP, $195 higher

View watch ↗

Cheaper alternatives· 7

Matches in a lower price band. A recorded MSRP difference is shown only when both prices are known.

Timex Essex Avenue 44mm Stainless Steel Bracelet Watch - TW2Y28800
Timex

Essex Avenue 44mm Stainless Steel Bracelet Watch - TW2Y28800

  • $102 recorded MSRP, $118 lower
  • 44 mm case, 0.4 mm narrower
  • Both use quartz movements
What changes

Lug-to-lug is not recorded for this match.

View watch ↗
Timex Expedition Field Chronograph 43mm Resin Strap Watch
Timex

Expedition Field Chronograph 43mm Resin Strap Watch

  • $75 recorded MSRP, $145 lower
  • 43 mm case, 1.4 mm narrower
  • Both use quartz movements
What changes

Lug-to-lug is not recorded for this match.

View watch ↗
Casio MDV-106 Duro
Casio

MDV-106 Duro

  • $85 recorded MSRP, $135 lower
  • 44.2 mm case, 0.2 mm narrower
  • 48.5 mm lug-to-lug, 0.8 mm shorter
What changes

0.3 mm thicker case

View watch ↗
Compare models ↗
Timex Mod 44mm Stainless Steel Bracelet Watch
Timex

Mod 44mm Stainless Steel Bracelet Watch

  • $72 recorded MSRP, $148 lower
  • 44 mm case, 0.4 mm narrower
  • Both use quartz movements
What changes

Lug-to-lug is not recorded for this match.

View watch ↗
Swatch Black White the Swatch Art Peace Hotel
Swatch

Black White the Swatch Art Peace Hotel

  • $90 recorded MSRP, $130 lower
  • 41 mm case, 3.4 mm narrower
  • 47.4 mm lug-to-lug, 1.9 mm shorter
What changes

2 mm thinner case

View watch ↗
Swatch Big Bold SwatchPAY
Swatch

Big Bold SwatchPAY

  • $105 recorded MSRP, $115 lower
  • 41 mm case, 3.4 mm narrower
  • 47.4 mm lug-to-lug, 1.9 mm shorter
What changes

2 mm thinner case

View watch ↗
Swatch Chic Pay
Swatch

Chic Pay

  • $105 recorded MSRP, $115 lower
  • 41 mm case, 3.4 mm narrower
  • 47.4 mm lug-to-lug, 1.9 mm shorter
What changes

2 mm thinner case

View watch ↗

Pricier alternatives· 12

Matches in a higher price band. Check the specifications to decide whether the differences matter to you.

Tissot T-Race
Tissot

T-Race

  • 45 mm case, 0.6 mm wider
  • 45 mm lug-to-lug, 4.3 mm shorter
  • Both use quartz movements
What changes

$650 recorded MSRP, $430 higher

View watch ↗
Citizen Promaster Skyhawk A-T
Citizen

Promaster Skyhawk A-T

  • 46 mm case, 1.6 mm wider
  • Both use quartz movements
What changes

Lug-to-lug is not recorded for this match.

View watch ↗
Bulova Black Dial EPDM Rubber Strap Series X 98B358
Bulova

Black Dial EPDM Rubber Strap Series X 98B358

  • 45 mm case, 0.6 mm wider
  • Both use quartz movements
What changes

$4,750 recorded MSRP, $4,530 higher

View watch ↗
Citizen Promaster Skyhawk A-T
Citizen

Promaster Skyhawk A-T

  • 45 mm case, 0.6 mm wider
  • Both use quartz movements
What changes

$596 recorded MSRP, $376 higher

View watch ↗
Citizen Promaster Land U822
Citizen

Promaster Land U822

  • 43.9 mm case, 0.5 mm narrower
  • Both use quartz movements
What changes

$795 recorded MSRP, $575 higher

View watch ↗
Tissot Chrono XL Vintage
Tissot

Chrono XL Vintage

  • 45 mm case, 0.6 mm wider
  • 45 mm lug-to-lug, 4.3 mm shorter
  • Both use quartz movements
What changes

0.8 mm thinner case. $450 recorded MSRP, $230 higher

View watch ↗
Tissot Supersport Chrono
Tissot

Supersport Chrono

  • 45.5 mm case, 1.1 mm wider
  • 45.5 mm lug-to-lug, 3.8 mm shorter
  • Both use quartz movements
What changes

0.1 mm thicker case. $625 recorded MSRP, $405 higher

View watch ↗
Breitling Endurance Pro
Breitling

Endurance Pro

  • 44 mm case, 0.4 mm narrower
  • Both use quartz movements
What changes

0.7 mm thicker case. $3,700 recorded MSRP, $3,480 higher

View watch ↗
Bulova Lunar Pilot
Bulova

Lunar Pilot

  • 45 mm case, 0.6 mm wider
  • Both use quartz movements
What changes

1.5 mm thinner case. $695 recorded MSRP, $475 higher

View watch ↗
Compare models ↗
Seiko SPC057P1
Seiko

SPC057P1

  • 44 mm case, 0.4 mm narrower
  • Both use quartz movements
What changes

0.8 mm thinner case. $497 recorded MSRP, $277 higher

View watch ↗
Bulova Icon Precisionist Men's Black Dial Stainless Steel Watch
Bulova

Icon Precisionist Men's Black Dial Stainless Steel Watch

  • 46 mm case, 1.6 mm wider
  • Both use quartz movements
What changes

$1,025 recorded MSRP, $805 higher

View watch ↗
Victorinox Journey 1884
Victorinox

Journey 1884

  • 43 mm case, 1.4 mm narrower
  • Both use quartz movements
What changes

0.2 mm thicker case. $750 recorded MSRP, $530 higher

View watch ↗

Homages & lookalikes· 5

Watches that share this design language: confirmed homages, close tributes, and lookalikes, including the classics that inspired the look. Hidden when nothing in the catalog is related.

Addiesdive AddiesKIN 40mm Crystallized Titanium Dial K006
Addiesdive

AddiesKIN 40mm Crystallized Titanium Dial K006

  • 40 mm case, 4.4 mm narrower
  • 45 mm lug-to-lug, 4.3 mm shorter
What changes

Automatic movement instead of quartz. $340 recorded MSRP, $120 higher

View watch ↗
Pagani Design PD-1707
Pagani Design

PD-1707

  • $123 recorded MSRP, $97 lower
  • 40 mm case, 4.4 mm narrower
  • Both use quartz movements
What changes

0.6 mm thinner case

View watch ↗
Pagani Design PD-1791
Pagani Design

PD-1791

  • $161 recorded MSRP, $59 lower
  • 42 mm case, 2.4 mm narrower
What changes

Automatic movement instead of quartz. 0.1 mm thinner case

View watch ↗
Pagani Design PD-YS010
Pagani Design

PD-YS010

  • 50 mm case, 5.6 mm wider
What changes

Automatic movement instead of quartz. 1.7 mm thicker case

View watch ↗
San Martin San Martin Multi-Function Luxury SN075GB
San Martin

San Martin Multi-Function Luxury SN075GB

  • 38 mm case, 6.4 mm narrower
What changes

Automatic movement instead of quartz. $379 recorded MSRP, $159 higher

View watch ↗
Keep your wishlist and collection together on iPhone and AndroidExplore the app
Get the appGet the app

Keep exploring

Follow a detail, a style, or a new direction.

Check your wrist fit ↗

Explore how case diameter and lug-to-lug relate to your wrist.

Find your watch style ↗

Use the quiz to explore watches around your preferences.

Best Sport Watches Under $500 ↗

Explore a wider set of watches in this category.