got a question ............................. >>>>

,,,,,,,,,,,>> recently purchased a chinese made watch. the movement is unmarked automatic and I`m guessing it has 21 jewels. Looking at the dial, there is a date at 3 o`clock and a subdual for seconds a 9 o`clock. The crown is at 3 o`clock as well. It is handwind as well as auto but I found it interesting that it only winds up in one direction. So far, I`m surprised about its accuracy which is about -7 sec/day.
Do you know anything about this kind of movement?

I don`t make things. I make things better !