9111 - Watch cases and parts thereof:

Chapter 91 of the Harmonized Tariff Schedule encompasses clocks and watches, along with their constituent parts. Within this chapter, heading 9111 specifically addresses watch cases and parts thereof. This classification is dedicated to the housings designed to protect and contain the internal mechanisms of watches, as well as components that are exclusively or principally used in the manufacture or assembly of such cases. The focus is on the external protective structure rather than the timepiece's functional movement.

Unlike sibling categories within the broader HTS structure, which cover a vast array of goods such as live animals (Chapter 01) or various manufactured products, heading 9111 is narrowly focused on the accessories and structural components of watches. Its distinction lies in its singular dedication to the physical enclosure and its related parts, ensuring that these items are correctly identified and taxed according to their specific function within the watchmaking industry.

The subcategories under 9111 provide further specificity based on the materials from which the watch cases are made. For instance, 9111.10.00.00 differentiates cases manufactured from precious metals or those clad with them, reflecting a higher value and distinct material composition. Similarly, 9111.20 distinguishes cases made from base metals, which may be plated. Heading 9111.80.00.00 captures "other cases" not covered by the preceding material-specific subheadings, ensuring comprehensive coverage. Finally, 9111.90 is designated for the various parts that comprise watch cases, allowing for the granular classification of individual components used in their production or repair.