9111.90.40.00 - Of precious metal or of metal clad with precious metal

This HTS category, 9111.90.40.00, specifically covers watch cases and parts thereof that are primarily composed of, or clad with, precious metals. This includes items such as watch cases made from gold, silver, platinum, or other precious metals, as well as parts like bezels, case backs, and crowns made from these materials. The key distinguishing factor is the presence of precious metal, which dictates their classification under this specialized heading.

This category is distinct from other "Parts" within the 9111.90.40 grouping. While other sibling categories might encompass parts made from non-precious metals or other materials, this specific subcategory is reserved for those cases and parts where the defining characteristic is the use of precious metal, either as the primary material or as a significant cladding. This distinction is crucial for accurate tariff assessment, as precious metal content often carries different duty rates.

As a leaf node, this category does not have further subcategories. Therefore, classification within 9111.90.40.00 relies on a direct assessment of the material composition. Importers and customs brokers must carefully consider whether the watch cases or parts are indeed made of or clad with precious metal to ensure correct classification. Examples include solid gold watch cases, sterling silver watch bands, or platinum watch crowns.