Most visitors online was 1660 , on 12 Dec 2020
hello. it is at the 23 minute mark. it is a 25 year cwc case.slot looks it was manufactured into the case. it is not very noticeable.i have one of roys books, and three or four of my watch buddies were friends of his when he was in kansas city. everyone said he was a gfreat guy.wish i could have met him.Welcome to the hobby. I dated a girl from Gladstone the summer of 1950.
Roy Ehrhardt was from the Lee's Summit area before finally moving to Florida. Most of his best early work on cataloging American watches was done there.
Where is the lever slot on your case? Is it to the left or right of the pendant? Was it manufactured into the case or was it cut after the case was made. You can tell if you look really closely.