
36 watches that match on case size, movement family, and price band. Sorted by how close the match is.
The closest alternative to the Spinnaker Dumas Automatic is the Orient Diver Watch ($285) — common cross-shop and Pro diver. From the independents, the Audaz ADZ-3000 is the standout microbrand take — shared caliber (NH35) and Pro diver. Stepping up, the Seiko Prospex Sea PADI Special Edition ($625) 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.
Where the same idea goes when budget isn't the constraint — luxury upgrades and step-ups.