VERSUS: 1960s Dress and Sport

Fourteenth edition of the "VERSUS" post/picture. What is "VERSUS"? Well, I thought it would be fun to compare two watches (and only those two watches) and discuss pros/cons by outlining the differences and getting folks' ideas/thoughts/opinions on TRF. We got folks here that have been collecting and studying these things for decades all the way to those who are just starting to venture into the crazy world of Rolex (and everyone in between). Therefore, it would be fun and educational!

For this edition, we have a showdown of a couple models from the 60s. An iconic dress watch with the Day-Date reference 1803 and an iconic sport watch with the GMT-Master reference 1675 (Mk1 fuchsia flavor).

Which do you prefer and why?