
20 watches that match on case size, movement family, and price band. Sorted by how close the match is.
The closest alternative to the Castor Watches N°1 is the Castor Watches PUDÚ ($159,900) — shared caliber (Miyota 2035) and Looks nearly identical. If price is the constraint, the Patek Philippe Aquanaut 5269 at $40,136 (vs $159,900 for the N°1) covers most of the same brief.
Independent makers covering the same brief — usually with something the mainstream brands don't.
If the price is the only thing keeping you off this watch, these get you most of the way there for less.