Aviation astronomical chronometer with a two-day power...

Rare aviation astronomical chronometer type 13ЧП, manufactured by the 1st Watch Factory of Moscow “Kirov” (future Poljot) for the Soviet Air Force. These instruments equipped long-range bombers. They were used for astronomical navigation with a sextant during long-duration flights. The chronometer: - Silver dial signed “1МЧЗ имени Кирова”, with large Arabic numerals - Small seconds and power reserve indicator (0–56 hours) - Mechanical hand-wound movement, housed in a brass case suspended by 4 anti-vibration springs The case: - Solid oak at three levels, corners and reinforcements in brass, two sliding latches - Upper level with brass bezel and glass window to read the time without opening the case - Heating system with two switches “ОБОГРЕВ” (on/off) - Multi-pin electrical connector for the seconds contacts - Manufacturer plate “13ЧП N° 02701” - Metal mounting lugs to attach the unit to the aircraft under the case Original document: the wiring diagram is preserved in the lid. It is titled “Хронометр авиационный астрономический 13-20ЧП-М” (aviation astronomical chronometer 13-20ЧП-М) and details the wiring to indicator 20ЧП-М, the Ф-14А filter and the sextant. Sold separately, without the indicator 20ЧП-М or the Ф-14А filter. Condition: very good cosmetic condition. The case shows light signs of use, brass patinated, dial with small signs of wear. The movement has not been tested; a service by a watchmaker is recommended. A piece of Soviet aviation history, sought after by collectors of military horology and navigation instruments.

Estimate:$1,120.23

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