The Zaria 2009A is a renowned mechanical watch movement originating from the Soviet-era Zaria watch factory, known for its robust construction and reliable manual winding mechanism. Below is a concise yet comprehensive article highlighting its key features and technical specifications.
Origin and Manufacture: Produced by the Penza Watch Factory (Penza being the location), this caliber belongs to the vintage Soviet watch movements family, widely appreciated by collectors and horology enthusiasts.
Movement Type: Manual winding mechanical movement with a traditional hand-wind mechanism, offering precision and durability without the need for battery power.
Size and Dimensions: The movement measures approximately 8 3/4 lignes (19.8 mm), a mid-sized caliber compatible with many classic wristwatch cases.
Jewels and Bearings: Equipped with 17 jewels which serve as bearings to reduce friction between moving parts, enhancing longevity and smooth operation.
Beat Rate: Operates at a frequency of 18,000 vibrations per hour (vph), which translates into a steady and reliable timekeeping rhythm.
Balance Wheel: Features a Glucydur balance wheel with a three-leg construction, combined with two in-house shock protection systems to improve the watch’s shock resistance and durability.
Construction and Features: The movement has solid construction with a pallet lever escapement and includes features such as a yoke winding system, movable hairspring stud, and an adjustable hairspring regulator for fine timing adjustments.
Date Mechanism: Some variants include a jewel-bearing date wheel, allowing for precise and semi-fast correction of the date function.
Historical Context: The Zaria 2009A was typically produced during the 1970s and 1980s and is prized for its complexity and engineering, representing a significant piece of Soviet horological heritage.
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Stem, Crown, Hands & Spares might be available for this movement.
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