hi
average servicing 10 years
it quiet unbelivable -> believe it, lol
actually this statement do stated in the seller website specification on that particular watch,
it not all russian watch is average servicing 10 years, but certain watches,
and believing in manual or forum or website, is not enough, action is the way,
i do have friend in russian, and around the world, who are my customer and friend, they own such watches and those are WWii watches, keep by thier grandfather and father, all is keep and more then 10 years some, and what supprise you, it still move, and accurate
watch is mechanical, for me, it is depand on the mechanical structure design of the movement. have you ever diassembler the movement check for your self? russian movement i did, but swiss movement, lol not allow else void warrenty..