9101.91 - Electrically operated:

This category, HTS 9101.91, encompasses electrically operated watches that are not pocket watches, specifically those with cases made of precious metal or metal clad with precious metal. This includes wristwatches and other types of watches that fall under the broader heading of "Other watches, including stop watches" within the precious metal cased category. The key defining characteristic for classification here is the electrical operation, distinguishing them from mechanical timepieces.

When differentiating from its sibling category, HTS 9101.99, the primary distinction lies in the presence of electrical operation. HTS 9101.99 covers watches with cases of precious metal or metal clad with precious metal that are *not* electrically operated. Therefore, an electrically powered wristwatch with a gold case would fall under 9101.91, while a mechanically powered wristwatch with the same case material would be classified under 9101.99.

The subcategories within 9101.91 further refine the classification based on the display technology. HTS 9101.91.20.00 specifically covers electrically operated watches with an opto-electronic display, such as digital displays. The remaining subcategory, "Other," is intended for electrically operated watches with precious metal or metal-clad cases that do not exclusively feature an opto-electronic display, likely including those with analog hands or a combination of display types.