Predecessors to Seiko’s first dive watches were these Seikomatic Silverwave’s. Early examples were rated to 50 feet. This March 1962 example showcases the cool silver sunburst dial with black internal rotating bezel on a Tropic strap.
Pristine 6117-6410 Navigator Timer GMT. Sourced from Italy more than a few years ago. Circa June 1970 on it’s original bracelet. Love the Pepsi colored internal bezel, rotates by spinning the crown when in the otherwise “winding” position. Hacking and quick-set date features.