
45 watches that match on case size, movement family, and price band. Sorted by how close the match is.
The closest alternative to the Citizen Promaster Diver is the Citizen Promaster Professional Diver ($431) — shared caliber (Citizen E168) and Pro diver. If price is the constraint, the Timex Diver Inspired 42mm Stainless Steel Bracelet Watch at $82 (vs $350 for the Promaster Diver) covers most of the same brief. From the independents, the Ratio FreeDiver 1000M Quartz 1038EF102V is the standout microbrand take — pro diver and Looks nearly identical. Stepping up, the Glycine Men's Combat Sub Sport 42mm Quartz Watch GL1013 ($995) is where the same idea goes with a bigger budget.
Independent makers covering the same brief — usually with something the mainstream brands don't.
Established brands covering the same brief at a comparable price — same case size, similar movement family. Often the deciding click for a new buyer.
If the price is the only thing keeping you off this watch, these get you most of the way there for less.
Where the same idea goes when budget isn't the constraint — luxury upgrades and step-ups.