Vostok Watch 291097

Self-winding.
Water protection: 2 atmospheres.
Instant calendar.
Number of stones – 31.
Body: brass. 
24 mm caliber movement with central seconds hand.
Mechanical mechanism Vostok 2416B
Mineral glass.
Coating: chrome or titanium nitride. With gold plated elements.
Shockproof device for the balance axis.
Belt made of genuine leather.
The average service life of the mechanism is 10 years.
Average daily cycle: -20… +60 seconds per day.
The energy reserve of one spring winding is at least 31 hours.