Vostok Watch 2416 31161A

Self-winding with a safety device against over-winding of the spring.
Water protection: 2 atmospheres.
Instant calendar.
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 of the balance unit.
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.