Stainless back, 10K RGP case. To me this one seems out of character for the time frame, but both case and movement are M1. Unusual smooth transition from case to "turtle leg" lugs. Original high polish on case, appears all original and is an accurate runner. Crystal is glass with a few minor scratches. Band is a 60's period replacement. Purchased from the original owner's "junk drawer".
Movement Serial No.
Case Serial No.