Hi I have an 1997 Omegamatic 2514:30:00 in original red leather box with red leather warranty card, white outer box and original receipt from Berry's of Hull. Immaculate condition and serviced at Omega twice. Owned from new.Thinking of trading in and wondered what would be a fair price and where best to secure the best deal. I understand this is a rare watch and a bit of a collector's piece now? Thanks