36 watches that match on case size, movement family, and price band. Sorted by how close the match is.
The closest alternative to the Cestrian Pro Dive Series is the Timex Expedition Pioneer Automatic 41mm Stainless Steel Bracelet Watch - TW2Y87400 ($459) — shared caliber (Miyota 8215) and Tool diver. From the independents, the Ratio FreeDiver Professional 500M Automatic 32BJ202A is the standout microbrand take — shared caliber (Miyota 8215) and Pro diver. Stepping up, the Timex Deepwater Reef 200 Titanium Automatic 41mm Synthetic Rubber Strap Watch ($589) 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.