I'd do it with pleasure but it would be a long way to come.
Jewellers would be best..... there are so many different types of watch bracelet that I couldn't talk you through it without seeing it.
Decent jeweller should be able to do it in a few minutes and prolly won't charge if you flutter yer lashes.
If they do charge you picked a gay jeweller (or a female one) ... but at most it'll only cost a few quid.