You appear to have a nice steel-cased Antimagnetique containing Tissot's robust in-house caliber 27-3. The reference 6072 featured a wide variety of dials in a rugged screwback waterproof case just about 31mm in size.
The watch on the right, below, is a 6072-4 that was issued by the Royal Netherlands East Indies Army (KNIL) near the end of WWII. The watch on the left is a 6072-1 that was an issued Civil Services India CS(I):
View attachment 1373663
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