I have only 8 watches, most of them came from seventies. Today I start with the Oripsa manual wind - French HP movement - Rose gold plated ( 10 micron ). By this design, I think it is from fifties era Cheers
The one below is probably oldest one. Tissot bumper cal 28.5-1, repainted dial heavily polished. Purchased back in 2016 when I dipped my toe in old mechanical watch world. At that time I already paid my 'noob tax' with an Ultra-Chron Longines Cal 6651 which reveals eventually a complete junk piece ...