Vintage USSR Soviet Era Aviation Clock Passport with Orignial Instructions

In working condition.This original document is the official passport/manual for the Soviet-era Часы 60 ЧП clock, as issued by the Chelyabinsk Watch Factory. Bearing the reference code “гМ2.81в3004 ПС,” it features detailed technical specifications, diagrams, and operational instructions for this robust aviation instrument. A valuable piece for collectors of Soviet memorabilia and aviation history, this passport offers an authentic glimpse into the engineering and design standards of its era. faultless for everyday use. first-class materials and excellent craftsmanship ensure long-lasting durability.