KM STOWA Beobachtungsuhr der deutschen Kriegsmarine Kaliber Unitas 2813

A large, rare deck watch of the German Navy
KM
STOWA
caliber Unitas 2813
Submarine execution with fluorescent dial

This deck watch was used by the Navy. An essentional tool for the exat time is positioning and navigation. The luminous dial is signed "STOWA - KM". This shows that this watch was made by Walter Storz in Pforzheim for the Navy.
The dial is still luminescent, but contrary to what is often said, it does not contain radium. Radium luminescent materials, such as those used in the indication of on-board and pilot watches, are long time ago expired.
The movement and the case have an identical number 730. This deck watch points outh through specific design features. The movement has a diameter of 47.8 mm, 19 Jewels and the caliber Unitas 2813.
After the Second World War, the Sinn company launched the post-war models, which differ in the case design. The case of the post-war models is chrome-plated, it has glazing on the back side and no dust cover.

The Imperial Naviy prefered the deck watches with the luminous dials. The introduction of these self-luminous dials for better readability by night was decided by the High Command of the Imperial Navy by letter dated 24/02/1944 (Ski H no. 963144 W Ivu) for all affected areas.

Details on the watch:
Dial
fluorescent dial
Arabic numerals
outer five-minute divisions
auxiliary seconds
blued spade hands
signed "KM STOWA"
the dial is strongly fluorescent
good condition with age traces of use

Movement
bridge movement
ground
rhodium plated
19 Jewels
screw compensation balance
club-tooth lever escapement
wishbone regulator
cutting winding wheels
blued Breguet balance spring
polished screws
screwed ruby endstone on balance
signed
the movement is in a very good working condition

Case
nickel-plated
smooth
nickel-plated dome
diameter ca. 60 mm without crown
total watch weight: approx. 134 grams
signed
good condition
The watch is fully functional and is in a good, used condition