Hello there:

Try www.chealwatch.com he is very very good and his prices are very resonable. He will also look at it and provide you with an estimate should the repair not be covered by a service (full service usually covers the replacement of most bits). Dont have to worry about customs as the item is declared for repair. I have an account with chris and have always been more than happy with his work. He trained with heuer and rolex but repairs most timepieces (apart from bulova accutrons). Please mention me (dean).

rgds and good luck