These watches need the help of a professional watchmaker. The gears are often not polished and cause issues. The escarpment crystals need proper oiling. There are also not enough crystals to limit the friction. Overall a good cleaning and oiling will go a long way to consistent results but without serious reworking they will never been great time keeping pieces.
![[Vostok Komandirskie 650546]](https://lemmy.world/pictrs/image/3bc4cdb1-b7b8-40a0-b11e-10435193c12a.jpeg){kind=link}
These watches need the help of a professional watchmaker. The gears are often not polished and cause issues. The escarpment crystals need proper oiling. There are also not enough crystals to limit the friction. Overall a good cleaning and oiling will go a long way to consistent results but without serious reworking they will never been great time keeping pieces.