
19 watches that match on case size, movement family, and price band. Sorted by how close the match is.
The closest alternative to the Pagani Design PD-1644 Rainbow is the Duxot Accelero Rainbow Chronograph ($300) — shared caliber (Seiko VK63) and Racing chrono. Stepping up, the Tissot PR 100 ($450) is where the same idea goes with a bigger budget.
Independent makers covering the same brief — usually with something the mainstream brands don't.
Where the same idea goes when budget isn't the constraint — luxury upgrades and step-ups.