U.S. Marine Prototype" Rolex, Oyster Perpetual Date, U.S. Marine, Superlative Chronometer, Officially Certified, Ref. 1690, movement No. 024510. Prototype made in two examples in 1982, for the US. Marines, production was never
Pagani Design (PD-1690) Is this Pagani's best watch?? | Rolex Oyster Perpetual Homage - YouTube
Cool Rolex of the Day #1690 (Cool Tudor Tuesday #222) 7016/0 Submariner (non-Snowflake), steel, 39.5mm. Circa 1970 : r/rolex