al kaholik, good question, ive not really got a preference for the Chinese stuff. rather a dislike of this particular movement from this particular watch. a friend of mine bought it years back, and it never was reliable. it kicked around with him until the late 90s, by then he had taken it apart and left the bits in a tobacco tin, he sent me the tin watch included around 2004 ish, with the comment " you like puzzles".
cleaned and put back together, i found several bits missing, the balance wheel, spring, cock and escape wheel. it sounds cruel to me, to do this to a watch, but if i were to return his favorite paper weight of a thing to him. he would rather it had a quartz movement or chinese automatic than another vostock. don't get me wrong he loves the look, but hates the mechanics and if it worked and kept time, it would be a watch again. call it a frankenwatch, if you must, but a watch for telling the time.
by the way had another look at it today, it is a 2416 b. notsharp, your spot on from my vague description.