1944-46 17 Jewel Shock-Resist Patent Waterproof Case

MST 372
107 372
Case Back:
Type 1: Patent waterproof 2 part case
Water Resistance:
Originally fitted with sewn pigskin strap.
A classic military style dial, with an MST372 movement, turtle lugs and copper dial place this watch firmly in mid 1940s. The single axis shock shock-resist was replaced before 1949, which places an upper limit on the age of the watch. The back of the case bears 2 patent numbers for the 2 piece waterproof casing system in patented in 1940 and the 2 part stem, patented earlier in 1936, both invented by E.Morf. Roamer licenced and started using these patents sometime in the early 1940s, the very first of which had plain backs. This one has two patent marks, which were used through to 1955 and are refered to by Roamer as the Type I cases. The later Type II cases were improved upon and patented by Roamer in 1955, and bear 4 patent marks reflecting the new Roamer patents and were in use until the mid 1970s. The last picture shows it alongside a similar watch from my collection, with decorative art deco lugs and a civilian dial.
All watches in my collection with calibre MST372:

All text and images are either © Kris Bubendorfer 2011-23 or © Roamer Watch Company.