Nairi mechanical wristwatch, Soviet production from the Yerevan Watch Factory, circa 1970s. Original square-shaped vintage case in 14K Soviet gold, marked 583. Manual winding mechanical movement. The watch remains in original vintage condition with visible signs of age and normal wear consistent with decades of use. The acrylic crystal shows damage and may require replacement or restoration. Case weight without movement and strap: approximately 36.11 grams. Visible Soviet hallmarks and serial numbers are present on the caseback exterior. Service receipt documentation is included in the listing photos. New leather bracelet. Please study all photos carefully, as they form an integral part of the description.