Hi Gabriel,
just recently bought my first Speedy 145.022.
Take a look at different models up to present times and do what your heart tells you.
If you want to get infos for the pre 1978 period visit
http://speedmaster101.com/ for basic reading.
WTB post only form 200 posts, sorry!
Take a look at the private watch sale here on the forum
https://omegaforums.net/forums/private-watch-sales/
Good hunting
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