12 size Digital

Digital

After South Bend factory closure remaining stock of 12s watches (including 17, 19 and 21 jewel watches) were sold to company Aisenstein-Woronock & Sons Inc. from New York. Then they cased them int specially made cases, also hands were replaced by disks with numbers to show time (jump hour).

Courtesy of Chronofil (KMZiZ forum)