Часы летчиков вот хорошие .
Фирма "Полет" Недавно чуть было не купил себе. Но я не летчик.
Mechanical watch (in any variant of execution) intends for supply of military men of divisions Overland and Airborne troops, marines of the Navy serving under the contract.
Military men of marines of the Navy are supplied наручными with a mechanical clock - an amphibian with автоподзаводом (АМНЧ-3).
Weight АМНЧ (in any variant of execution) on a bracelet should be no more than 0,08 ± 0,005 kg. The height () АМНЧ (in any variant of execution) should be no more than 13 ± 0,1 mm.
Diameter of case AMNCH (in any variant of execution) should be no more - 40 ± 0,1 mm.
АМНЧ-1, АМНЧ-2, АМНЧ-3 should keep during operation before major repairs (the nearest maintenance service) the basic technical characteristics:
a daily course from - 20 to + 60 seconds a day;
estimated number (N) no more than 15;
power autonomy not less than 40 hours.
АМНЧ-4 Should keep during operation before major repairs (the nearest maintenance service) the basic technical characteristics:
a daily course from - 20 to + 60 seconds a day;
estimated number (N) no more than 15;
power autonomy not less than 40 hours, and at the included stop watch not less than 33 hours.
Values of basic technical characteristics АМНЧ (all types), specified above under following conditions:
temperature (20 ± 5) °С;
relative humidity from 30 % to 80 %;
atmospheric pressure from 630 to 800 mm hg
the Temperature interval of work of hours from - 40 to + 40 °С.
The temperature error of course АМНЧ shouldn't, exceed ± 0,8 with / (days °).
