Vintage Oyster Precision 6426 or not?

[Bunny4jeff]

Hi, I recently bought a cute-looking Rolex Oyster Precision, ladies model, which surprises me as it has a design number of 6426. Which, I read, belongs to a mans steel bracelet model, dating from the '60s. The serial number between the lugs starts with 166 which is correct for the 6426. However as can be seen, mine looks totally different, in more ways than one lol. It had no box or papers, alarm bells I know, but naturally it was a very reasonable cost, it works, and I like it...call it female logic if you no doubt will..
Does anyone have an answer to this puzzle, ie. does, or did, Rolex ever attribute differing styles of watch to their design numbers? The watch I have also looks much older in design, than the mans model attributed to the 6426. Mine looks from the 40s or 50s but that makes no sense to me. Photos attached.
Anything useful would be useful to me. Thanks in advance. [ATTACH][/ATTACH]