Can someone help a Rolex newby. I am looking at a 1974 ( Birthdate ) Sub and wonder what the model number would have been, either with or without date. I understand the serial number will be between 4000000 and 4265000
Yep, your serial number range is about right for 1974 production. If you're looking for a Sub, you're looking at a Submariner-Date ref 1680/0 or a Submariner(non-date) ref 5513/0.