[Rinty]

If you decide to buy it, you can send it in to Rolex for a service, and it'll come back looking like new. While it's in there, you can get their advice on what to do about the bracelet.

Here's a book on the sports models:

VINTAGE ROLEX SPORTS MODELS: A Complete Visual Reference and Unauthorized History: Amazon.co.uk: MARTIN SKEET: 9780764329814: Books

Good luck.