9105.99.30 - Having no jewels or only one jewel

This HTS category, 9105.99.30, specifically classifies "Other clocks" that are not specifically covered by preceding headings within Chapter 91. These clocks, falling under the broader "Other" subdivisions, are further defined by their operational characteristics. Crucially, this classification applies to clocks that have no jewels or are fitted with only a single jewel mechanism. The focus here is on the simplicity or absence of jeweled bearings within the clock's movement.

This category is distinguished from its sibling, 9105.99.40, which covers clocks "Having over one jewel." The presence or absence of jewels, and specifically the number of jewels when present, serves as the definitive criterion for separating these two classifications. Therefore, a clock with two or more jewels would be classified under the sibling category, while one with zero or one jewel falls into this specific heading.

As this is a leaf node, there are no further subcategories to introduce. Classification under 9105.99.30 is final based on the criteria of being an "other clock" not otherwise specified, and having no jewels or only one jewel in its movement. Examples of clocks that would fall here include basic mechanical alarm clocks or decorative mantel clocks with simple, non-jeweled movements, provided they meet the other general conditions of heading 9105.