Harmonized System
Section XVIII > Chapter 91 > Heading 9108 > 9108.20
With automatic winding
Section XVIII > Chapter 91 > Heading 9109
Clock movements, complete and assembled.
Section XVIII > Chapter 91 > Heading 9109 > 9109.10
Electrically operated
Section XVIII > Chapter 91 > Heading 9110
Complete watch or clock movements, unassembled or partly assembled (movement sets); incomplete watch or clock movements, assembled; rough watch or clock movements.
Section XVIII > Chapter 91 > Heading 9110 > 9110.1 > 9110.11
Complete movements, unassembled or partly assembled (movement sets)
Section XVIII > Chapter 91 > Heading 9110 > 9110.1 > 9110.12
Incomplete movements, assembled