Hi, anyone on the forum have a good reference point for early Seamaster 300's straight lugs and asymmetric cased ,(forums, books etc.) production dates, dials, movements, case sizes, lugs sizes, bracelets etc. or Is there a forum expert I could quizz? There just dose not seem to be the copious amount of information on these early Omega models as with their chronograph counterparts Speedmaster Professionals. Cheers, M