Subheading 911011: Watches; Complete Movements, Unassembled or Partly … etc.
Subheading 910910: Clock Movements; Complete and Assembled, Electrically Operated
Subheading 911012: Watches; Incomplete Movements, Assembled
Subheading 911019: Watches; Rough Movements
Subheading 911090: Clocks; Movements, whether or not Complete, Incomplete, … etc.