I've been on a buying spree (4 gens in as many weeks) so this is my latest acquisition:
1968 Rolex DateJust 1603 - engine turned bezel, non-quickset, slow beat 1565 movement @18,000 vph (my favorite Rolex movements ever are the 15xx series, preference to the 156x)
Delicious pie-pan dial to match my '62 Omega Constellation at least...that was my justification.
Just serviced by Rolex with box and papers... Baton hands were replaced at the last owners option at the service last year...I'll probably pick up a pair of tritium Dauphine hands and swap them out so it matches my 1960's OP 1002