Well, how about three? The first watch, the Seiko Prospex Marinemaster Professional Seiko Diver’s Watch 60th Anniversary ...

The Seiko Prospex SPB313 ... And since they're divers, all three watches are topped with black uni-directional rotating bezels for tracking elapsed time underwater. There are three dial colors ...

The Seiko Prospex SNJ025 is a reinterpretation of the 1982 Hybrid Diver’s Watch ... It’s made with a lightweight matte black case with Hardex Crystal screw-down crown, pushers, and case ...