Movement Serial No.:
Case Serial No.:
Stainless Steel Case measures 41mm lug to lug x 34mm non inclusive of the Crown using Calipers.
Stainless Steel Caseback is press fit to the bezel and stamped as shown.
*A Patent for this Case design was applied for in 1954 - issued in 1959.
Inventor listed as Emil E Fachon http://www.prior-ip.com/patent/22838823/
vintage display ad Dated 1962, as found.