William Smith
Posted November 1, 2012 - 7:05pm
Very similar to this 1970 unknown here, which lacks 17 Jewels on the dial but has SWISS at bottom of dial. There's also a 1962 Concerto in the database here. One of the root photos for this 1962 example is below. The watch to the right is the 1962 example, not subject watch.
I don't know the year of the ad above, and the fully numerated dial doesn't match the 1962 example nor the subject watch. Ad does say yellow or white.