It has the Correct Vostok 2809 A movement installed.
I never actually thought i would ever add this rarest of the Vostok precisions,to my collection.
It was for sale on e.bay U.K,of all places,it went for a ridiculously low price,most undervalued.
The extremely honest seller/collector,had shown excellent pictures,i can only assume the other bidders out there had not done there homework and thought it was a Franken [Fake].
I have only seen this type a hand full of times on the Russian forum,[the best and most knowledgeable forum].
The seller advertised it as having military connections,and there is anecdotal evidence that it could have been military issue.