Omega Seamaster 120 watch
Automatic Seamaster 120, 31mm, Date, 166.027. Found about two weeks ago in an estate box. Stem/crown was a bit stiff, but turned easily enough to set to correct date and time. Started during this process; not actually wound. Worked perfectly for about six (6) days. Watchmaker took off the back, for the first time since new (1968?). Beautiful movement. Electronically timed at 19,500 bph, which 98.5% of perfect (19,800), and why it keeps great time. Watchmaker fully wound it, (26 April), and has