9105.19.20 - Having no jewels or only one jewel

This classification pertains to alarm clocks that do not contain any jewels in their movements or are equipped with only a single jewel. These timekeeping devices are designed to alert the user at a set time and fall under the broader category of "Other clocks" within Chapter 91 of the Harmonized Tariff Schedule. The key defining characteristic for this subcategory is the absence or minimal presence of synthetic rubies or sapphires within the clock's mechanical movement.

It is important to distinguish this category from its sibling, HTS Code 9105.19.30, which covers alarm clocks with "over one jewel." The number of jewels in a clock's movement is a critical factor in determining its precision, durability, and often, its cost. Therefore, this distinction is made based on the technical specifications of the internal mechanism.

As this is a leaf node in the HTS structure, there are no further subcategories. Classification within this code is finalized based on the criteria of having no jewels or only one jewel, provided all preceding classification criteria (such as being an alarm clock, not measuring over 50 mm in width or diameter, and designed to operate for over 47 hours without rewinding) are met. Importers should carefully examine the construction of the clock's movement to accurately ascertain the number of jewels.