My 33 year old Speedmaster 345.0808 with the calibre 863 movement in it has lost one second in 22-hours. Do I need a modern generation model with a co-axial movement as a replacement? I don’t think so! Worn 24 hours daily with chronograph running. Gotta love obsolete watches!
I’m not well versed in Speedy details, is yours the Speedy reduced? It’s looking good!