Automatic winding with a safety device against over-winding of the spring.
Stainless steel bracelet.
Dimensions: diameter - 42 mm, height - 15 mm.
Tightness: 200 m.
Instant action calendar.
The number of stones is 31.
Case: stainless steel.
Mechanism 2416B.
24 mm caliber movement with a central second hand.
Organic glass.
The duration of the stroke from the full winding of the spring is 31 hours.
The average service life of the mechanism is 10 years.
Average daily stroke: -20... +60 seconds per day.
Frequency: 19800 half-vibrations/hour.
Manufacturer: Vostok
Made in Russia.