Specification MIL-W-46374 OD Plastic Watch
The first version of the standard will be found with markings such as these, in a circle around the edge of the back cover and in horizontal lines on the back itself:
U.S. Wristwatch Non-Maintainable
MIL-W-46374
Fed. Stock No.6645-952-3767
APR 1969
The contract number and manufacturer (Benrus, Belforte) will also appear.
The next version was MIL-W-46374A, published September 1968, with watches made by Hamilton, Westclox and Benrus. This version of the spec permitted plastic, corrosion resistant steel or stainless steel material for the case, covered by a series of amendments over the production life roughly from 1970-1975.
One example of markings would be:
Watch-wrist General purpose
Mil-W-46374A
Westclox No. 75092
FSN 6645-952-3767
DAAA25-70-D-0335
Sept 1970
US
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