Looking to buy my first vintage seamaster

Of course, they are just examples of what’s on this forum, I don’t know the watches nor the sellers and you should price shop accordingly based on previous sales (you can look up sold listings in the search) which will tell you if they are in line with current market.
Also, always take into consideration that if a watch is being sold without a statement and evidence of service, you have to factor the additional cost into your purchase price.

Great comments. Just passing on a useful tips I got myself here: you can edit your messages using 'options' if you forget to attach a pic, for example.