Here's a link to a very nice article about the Omega Seamaster 2541.80 on the James Bond Lifestyle website (a mention of us as well, as author bought his example from us):

and a link to his lovely instagram account:

"I got mine in very good condition at Chrono24, a trusted second hand online market place, from seller The Watch Vault NYC (Jerome Jao) who I can recommend, he regularly has few Seamasters in stock."