Serial number dates to ca 1971.
Please have it service before you wear it, rust on a movement is never a good sign.
Didn’t see the rust and, honestly, didn’t think there would be such a problem on a watch recommended for consideration. If I got burned on this purchase, I’ll consider it a learning experience and proceed with due caution and more homework in the future. I’m still appreciative of the time that @dsio and others devote to looking at offerings on eBay. Cheers.