JLC Polaris, Rolex GT MASTER 1675, Omega CK 2913 or CK 2914, Longines Nautilus or a good old Longines 30 CH, some Minervas, as well, a Zenith Cal 135 or A 386...
of mixed information on the piece, I remember in 2000 the idea was that less than 10 existed, then it was less than 40 and now it is less than 500, so that too has affected values. Regardless for me personally I love the design, the 70s production quality...
I'd go for a watch I can wear and enjoy, so I wouldn't go complication (maybe a chronograph, but thats it). Rolex 1655 Explorer II, 1665 sea dweller or 5512/3 , 1016 EXP, or a YG daydare- all must be in an unpolished perfect condition. From Patek a simple...