U-Boat Caliber U28

U-Boat Caliber U-28

Automatic
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U-Boat Caliber U28

ManufacturerU-Boat
Caliber NumberU-28
Base CaliberETA 2824-2
Vibrations Per Hour28,800 bph
Power Reserve38 hours
Jewels25
FunctionsHours, minutes, seconds, date
Country of ManufactureSwitzerland
Known Models
U-1001 (ref 6949)

According to U-Boat this movement was:

…modified and personalized to U-Boat specifications for stem position at 9 o’clock.

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