I need help knowing which end link and bracelet go with my watch

[Oysterman1979]

I need help knowing which end link and bracelet go with my watch

I recently bought a vintage 1979 1505 Rolex. It came with a leather band, but I would like to find either original or custom-made end links and bracelet to match. Preferably a bracelet that is two tone. But my problem is I cannot for the life of me figure out what the end like it’s supposed to be. I’ve seen 557 and 457 etc. however, I’m aware that the end link has to match the bracelet but more importantly the end link has to match the watch for it to fit correctly. Please help if you can.