9103.10.20 - With opto-electronic display only

This category, HTS 9103.10.20, specifically classifies electrically operated clocks that feature an opto-electronic display as their sole means of indicating time. This means the clock's display utilizes light-emitting diodes (LEDs), liquid crystal displays (LCDs), or similar technologies for displaying the time, and does not incorporate any mechanical or analog display elements. These clocks are distinct from other electrically operated clocks that might include a combination of digital and analog displays, or only analog displays.

The defining characteristic for inclusion here is the exclusive use of an opto-electronic display. If an electrically operated clock has any other form of time indication beyond an opto-electronic display, it would fall under a different classification. The primary function remains that of a clock, and the power source is electricity.

As this is a terminal classification, there are no further subcategories. Therefore, the classification hinges entirely on the presence of an opto-electronic display as the exclusive time indicator for an electrically powered clock. Examples would include typical digital alarm clocks, bedside clocks with LED displays, or modern wall clocks solely relying on electronic display technology.