Kristall pocket watches were a sub-type of Molnija pocket watches, produced at Chelyabinsk Watch Factory from 1955 to 1967. Aside from the brand on the dial (Кристалл, meaning "crystal"), these watches were distinguished by their movement: a higher-grade version of the Molnija 3602 which included a 'swallowtail' micro-regulator for precision adjustment and improved timekeeping.

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