For the in-depth engineering details, be sure to follow the watchuseek forum link. The interview with the designers is also good, albeit written in Russian so parts may get lost in translation.
For completeness I'll just mention the Poljot 3133, which is an excellent, low cost mechanical chronograph. It is the most technically advanced Russian movement, while the Amphibia is the most advanced case design. Poljot went out of business a few years ago, but there's still enough stock around that you can find plenty of new watches with this movement from companies like Volmax.
Vostok are still making new, fully in-house mechanical watches, and they are just as good or in some cases better than they were in the 90s. Meranom are their official online retailer. Note that Vostok Europe are a completely different company that no longer use any Russian parts, although they did use Vostok movements in their older models.
I personally would avoid older Russian watches unless you are prepared to spend a lot of time on research, or don't mind buying something that isn't what you were expecting. The vast majority on the open market are frankenwatches (mixed-up parts, often botched internal repairs).
There's far too much to write about these, but this article covers most of it:
https://www.hodinkee.com/articles/vostok-amphibia
For the in-depth engineering details, be sure to follow the watchuseek forum link. The interview with the designers is also good, albeit written in Russian so parts may get lost in translation.
For completeness I'll just mention the Poljot 3133, which is an excellent, low cost mechanical chronograph. It is the most technically advanced Russian movement, while the Amphibia is the most advanced case design. Poljot went out of business a few years ago, but there's still enough stock around that you can find plenty of new watches with this movement from companies like Volmax.
Vostok are still making new, fully in-house mechanical watches, and they are just as good or in some cases better than they were in the 90s. Meranom are their official online retailer. Note that Vostok Europe are a completely different company that no longer use any Russian parts, although they did use Vostok movements in their older models.
I personally would avoid older Russian watches unless you are prepared to spend a lot of time on research, or don't mind buying something that isn't what you were expecting. The vast majority on the open market are frankenwatches (mixed-up parts, often botched internal repairs).