Where I can find the serial number for my watch?
The defect of the watch:
1. a practical placed on one of the diamond
    - I worry that if the practical leave the current place and drop into the mechanical part, it will stick the movement part and stop the watch
2. The watch is running fast
    - It runs around 10 second fast daily
    - I hope to adjust the second what I can do?
    - I pull out the crown one step for adjustment of the timing, the second hand still moving