Finding alternatives to
Casio GST-S100G
Ref. GST-S100G
39 watches that match on case size, movement family, and price band. Sorted by how close the match is.
Case
52.4mm
Movement
Quartz
Category
Sport
MSRP
$330
The short answer
The closest alternative to the Casio GST-S100G is the Casio PRG-600 ($365) — visually similar and Quartz. If price is the constraint, the Casio G-Shock GW-M5610 at $145 (vs $330 for the GST-S100G) covers most of the same brief. From the independents, the BERNY Men's Skeleton Mechanical Watch is the standout microbrand take — looks nearly identical and Quartz. Stepping up, the Citizen Promaster Aqualand 200M Depth Meter ($769) is where the same idea goes with a bigger budget.
ColourwayPick a colourway to match a specific dial
39 matches
Microbrand picks· 12
Independent makers covering the same brief — usually with something the mainstream brands don't.
Mainstream picks· 12
Established brands covering the same brief at a comparable price — same case size, similar movement family. Often the deciding click for a new buyer.
Cheaper alternatives· 3
If the price is the only thing keeping you off this watch, these get you most of the way there for less.
Pricier alternatives· 12
Where the same idea goes when budget isn't the constraint — luxury upgrades and step-ups.
