
48 watches that match on case size, movement family, and price band. Sorted by how close the match is.
The closest alternative to the Santurce Vulcain x Santurce Collection Collab is the Seiko Prospex Sea 1965 Heritage Diver's Watch ($1,300) — pro diver and Looks nearly identical. If price is the constraint, the Orient AC0Q Diver II LE at $395 covers most of the same brief. From the independents, the Santurce Vulcain x Santurce Collection V.2 is the standout microbrand take — same family (Vulcain) and Pro diver.
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.