The Wostok 2409 is a classic Russian mechanical watch movement valued for its robust and reliable design. Produced primarily in the late 1970s and widely used in vintage Wostok models, this manual-wind caliber combines traditional watchmaking craftsmanship with sturdy construction typical of Soviet-era engineering.
Key Features of Wostok 2409 Movement:
Type: Manual winding mechanical movement
Jewels: 17 synthetic ruby jewels to reduce friction and wear
Power Reserve: Approximately 40-45 hours on a full wind
Frequency: 19,800 vibrations per hour (vph), providing a beat rate higher than many contemporaneous Russian calibers
Diameter: 26.45 mm (10 1/2”’ size), suitable for medium-sized wristwatches
Height: Approximately 3.5 to 3.6 mm thickness
Escapement: Pallet lever escapement
Balance Wheel: Glucydur (a durable, temperature-stable alloy) with an adjustable hairspring connector and a long regulator for fine adjustment
Shock Protection: Russian-style Incabloc shock absorber with three arms to protect the balance staff
Functions: Hours, minutes, and sweep central seconds hand
Adjustment: Moveable stud and hairspring key for precise regulation; clockwise balance direction
The Wostok 2409 is noted for its durability and straightforward design, making it a favorite among collectors and watchmakers servicing vintage Russian watches. It runs reliably with acceptable accuracy around ±7 seconds per day when well-maintained and properly regulated.
Its combination of a 17-jewel setup, relatively high beat rate, and efficient power reserve makes it a practical movement for everyday use. The movement’s resistance to magnetism and mechanical shocks also contributes to its longevity in tough conditions.
In summary, the Wostok 2409 is a testament to the rugged, functional engineering of Russian horology—a mechanical workhorse that continues to be cherished by enthusiasts worldwide.
This article incorporates technical data sourced from reputable horological databases and watchmaker analyses to ensure accuracy.
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