9103.10.40 - Having no jewels or only one jewel in the movement

This HTS subheading, 9103.10.40, specifically classifies electrically operated clocks with watch movements that contain no jewels or only a single jewel within their intricate movement mechanism. This focus on the limited jeweling of the movement is the primary distinguishing factor for goods falling under this designation. These clocks are distinct from other electrically operated clocks with watch movements, as the presence of more than one jewel would necessitate classification under a different, albeit related, subheading.

The absence or singular presence of jewels in the movement is a critical technical characteristic that dictates classification. Jewels in watch and clock movements serve to reduce friction at pivot points, thereby increasing accuracy and longevity. Therefore, clocks classified here are generally of simpler construction or designed for less demanding applications where the reduced friction offered by multiple jewels is not essential.

As a leaf node, this category does not have further subcategories. Its precise definition relies on the direct application of the stated jewel count criteria. When classifying an electrically operated clock with a watch movement, customs officials will examine the movement's construction to determine if it meets the "no jewels or only one jewel" requirement. If it does, it falls under 9103.10.40; otherwise, it would be directed to the sibling category 9103.10.80, which covers all other electrically operated clocks with watch movements.