9110.90.20.00 - Complete movements, unassembled or partly assembled (movement sets)

This HTS category, 9110.90.20.00, specifically covers complete watch or clock movements that are imported in an unassembled or partly assembled state, often referred to as "movement sets." This includes all the necessary components to form a functional movement, but they have not yet been put together. The intention is for these components to be assembled into a complete movement at a later stage, either for the production of finished watches and clocks or for subsequent sale as a movement kit.

The crucial aspect for classification under this subheading is the completeness of the movement's components, even if not yet assembled. This distinguishes it from incomplete movements which are assembled but lack essential parts to function, or rough movements which are typically in a less processed state of manufacture. As this is a leaf node in the HTS structure, there are no further subdivisions. Classification here hinges on identifying a set of parts that collectively constitute a complete watch or clock movement, even when presented in a disassembled or partially assembled fashion.