
21 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 Antártica is the Zenith G F J Calibre 135 ($75,000) — same size. If price is the constraint, the Ming 19.01 covers most of the same brief. From the independents, the Agavus Agavia Line is the standout microbrand take — looks nearly identical and Quartz.
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.