Rare 1950s Technos w/Military Style Black 9,12,3 Dial

Here is an interesting vintage 1950s Technos in an 35.8mm case.
The dial is glossy black with Explorer type 9,12,3 and triangular hour markers in Tritium T<25 MC as marked on the very bottom of the dial.
Interesting hands with minute hand tipped with a large triangle. All the lume has nice patina. The crystal is somewhat reminiscent of old Rolex Submariners.
The bezel is made out of brass and turns in both directions. The bezel insert is quite aged. The lugs are 20.5mm wide.
Screw back case cover with the following text: WATERPROOF-INCABLOC, ALL STAINLESS STEEL ANTIMAGNETIC SWISS MADE.
The movement is a wind up AS1130 so called Wehrmachtswerk (army movement) with power reserve of 41 hours and running well.