The Bo UK 1 has power for 36 hours, 11 jewels, and a 30BZ caliber. The precision of Junghans work quickly became synonymous. At first, they specialized in manufacturing individual parts for watch production. Businessman Erhard Junghans founded the company in Schramberg, a small town in the Black Forest, together with his brother-in-law Jakob Zeller-Tobler.
The main diferent was the handsetting lever, pulling the knob in first versions, next hand setting at 3 oclock position, and last hand setting at 5 oclock. The Junghans watch factory came into being in 1861.
This clock was very valuable, pilots were instructed to take it and the gunsight before leaving the plane after a crash or emergency landing.ĭuring the time it was being built, 5 models were made, changing along the time from brass bezel and knobs, to bakelite. The timer was necessary for approachs with no visibility. If you click the button again both hands stops, finally the next push resets both hands to zero. By preesing on the button situated on the bottom part the chroni stars, the second hand would start moving and the minutes counter (hand at 6 o’clock) starts at the same time. flight time (by selecting with the arrow in the rotating bezel, the minute hand during the take off),.It provided all the necessary about time in an airplane, The Bo-Uk-1 FL23885 Blindfluguhr (blind-flight or instrumental flight), made by Junghans, was designed for flights without visibility.
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