Up for sale is an incredibly scarce piece of WWII German military horology and communication history. This is a massive, mechanical Luftwaffe Radio Room Morse Code Signaling Timer, manufactured by Julius Pintsch in Berlin (Type UF. Nr. 391). These specialized timing units were utilized at German air bases to trigger MZG2 transmitters at precise, fixed intervals for aircraft navigation and signaling. With an estimated production run of only around 1,000 units, surviving examples are highly sought after by advanced militaria and horology collectors.


​Key Features & Markings:


​Maker: Julius Pintsch, Berlin


​Model: Type UF. Nr. 391


​Military Inspection Mark: Clearly stamped with the red octagon BAL 388 (Bauaufsicht Luft) on the interior mechanism plate, guaranteeing authentic Luftwaffe provenance.


​Patent Mark: D.R.P. (Deutsches Reichspatent) stamped below the BAL mark.


​Dial & Controls: Clean, legible metal dial with German control markings including Ablaufen (Running), Stopp (Stop), and Aufzug (Wind up).

​Display: Features thick glass on both the front face and the rear casing, allowing full visibility of the impressive mechanical movement and electrical contact relays.

​Measurements:


​Diameter: Approximately 6.5 inches across the main face (see photo with tape measure for scale).

​Build: Extremely heavy, robust industrial metal casing designed for intensive military use.

​Condition:


The unit is in excellent cosmetic condition for its age and military use. The black casing retains much of its original finish with authentic wear, edge chipping, and patina consistent with a WWII-era operational environment. The glass panels are intact. The internal movement appears clean, complete, and highly complex. Please review all high-resolution photos closely to judge exact cosmetic condition.


I unfortunately dont have a key to wind it. Its larger than a mantle clock key. But the fact its exists, is a pretty cool thing!