Aircraft clock with stopwatch ASF-1

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Duration of one complete winding springs at least 3 days. The diurnal variation of temperature (20 ± 5) ° C ± 20 seconds. Start of work hours - after two complete revolutions of the crown. Number of jewels 25.



Lower connection terminals for catering 27 volts. Used as a heater for thermal stabilization.



Watch issued before 70 coated hands and dial 226. radiya- with the addition of salts of radium-226 is part of the continuous phosphor (SPD). In the body, it behaves like calcium - about 80% In the body radium accumulates in bone. High concentrations of radium cause osteoporosis, spontaneous fractures and malignant bone tumors and hematopoietic tissue. The danger is also radon - a radioactive gas decay product of radium.



Ambient temperature -60 ... + 60 ° C Dimensions 85h91, 4h91, 4 mm. Weight 0, 655 kg.



More such modifications airborne hours.



Mechanisms hours.

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By the way there is an excellent screen saver in the form of hours of aircraft MiG-29 instead of the second hand. (Screensaver ACHS1-)



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