Dan_man13
·I purchased my first Speedmaster 145.0022 after waiting a long time for the right one to pop up. Purchased from a credible dealer. I open the caseback to attempt dating the watch and find the escape bridge has no serial number. The case does not have one as well. It appears this watch has been serviced and has newer hands. Movement is stamped 861. Can someone help me date the watch with other features?