Some Mil Sub history…pictured is a ref 5517

The watches are modified Submariners. According to MOD specifications. For the use in service they needed sword hands, T-mark on the dial as sign for tritium, 60 minutes bezel (also it seems there where some issued with 15 minutes bezel, but it’s still an issue among collectors if so ), fixed bars, a MOD admirals strap and engravings on the backcase which state the MOD numbers and year of issue and number.

The sword hands are one of the biggest visible changes on the watch. On the wrist they are magical!