Looking for some information on this watch. I suspect it may be a Vostok, but what do I know.

A mate bought it in 2013 and wore it (ab)used it for a while, Given its slightly fogged crystal, I suspect he’s stored it in his shed for a few years. It’s now sitting in its box beside a silica desiccant pack. I’ve tentatively given it a clean up and tried to translate the Cyrillic on the case-back. High school Russian, got me as far as Stainless Steel 10ATM and, I think, Anti Shock. But the rest…

Help identifying this watch please