HS code · 6-digit subheading
HS Code 9109.10 – Clock movements; complete and assembled, electrically operated
HS code 9109.10 is the 6-digit subheading for clock movements, complete and assembled, electrically operated. It is used for quartz clock movements, battery-operated clock movements, pendulum clock movements (quartz), chime clock movements (quartz) and silent sweep clock movements.
What HS 9109.10 covers
This HS code covers complete and assembled clock movements that are electrically operated, typically referring to quartz-controlled mechanisms. These movements are the ubiquitous 'heart' of most modern wall clocks, desk clocks, and alarm clocks, providing highly accurate and reliable timekeeping without the need for manual winding. Importers include clock manufacturers, furniture makers (for integrated clocks), craft suppliers, and distributors of home decor items. Exporters are often mass-producers of electronic components and clock mechanisms, leveraging economies of scale. Key aspects in international trade include accuracy (e.g., +/- 1 second per year), battery life, dimensions for various clock sizes, and features like silent sweep, pendulum drive, or chime capabilities.
- Covers
- Quartz clock movements
- Battery-operated clock movements
- Pendulum clock movements (quartz)
- Chime clock movements (quartz)
- Silent sweep clock movements
- High torque clock movements
- Examples
- Seiko Quartz Clock Movements
- Rhythm Quartz Clock Movements
- Hermle Quartz Clock Movements
- Youngtown Quartz Clock Movements
- UTS Quartz Clock Movements
Codes often confused with 9109.10
Common mistake. Can be confused with 910990 if the movement is not electrically operated; the 'electrically operated' aspect is the primary differentiator from other clock movements.
Top exporters and importers of HS code 910910, 2025
In 2025, the largest exporter of HS code 910910 in UN Comtrade data was China, with 65% of world exports; the largest importer in UN Comtrade data was Hong Kong, with 10% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 China $18M 65% of world exports
- 2 Hong Kong $1.9M 6.8% of world exports
- 3 Germany $1.4M 5.1% of world exports
World total: $28M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Hong Kong $2.2M 10% of world imports
- 2 Germany $1.5M 7.0% of world imports
- 3 Japan $1.1M 5.3% of world imports
World total: $21M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for 9109.10
Brazil does not split HS 9109.10: its NCM code is 9109.10.00.
All Brazil NCM codes in heading 91.09 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 9109.10
What is HS code 910910?
HS code 910910 is a 6-digit subheading in the Harmonized System that covers: Clock movements; complete and assembled, electrically operated. This HS code covers complete and assembled clock movements that are electrically operated, typically referring to quartz-controlled mechanisms. These movements are the ubiquitous 'heart' of most modern wall clocks, desk clocks, and alarm clocks, providing highly accurate and reliable timekeeping without the need for manual winding. Importers include clock manufacturers, furniture makers (for integrated clocks), craft suppliers, and distributors of home decor items. Exporters are often mass-producers of electronic components and clock mechanisms, leveraging economies of scale. Key aspects in international trade include accuracy (e.g., +/- 1 second per year), battery life, dimensions for various clock sizes, and features like silent sweep, pendulum drive, or chime capabilities.
What products fall under HS code 910910?
Quartz clock movements, battery-operated clock movements, pendulum clock movements (quartz), chime clock movements (quartz), silent sweep clock movements, high torque clock movements
What are common misclassifications for HS code 910910?
Can be confused with 910990 if the movement is not electrically operated; the 'electrically operated' aspect is the primary differentiator from other clock movements.
Which countries are the top exporters of goods under HS code 910910?
In 2025, the top exporters of HS code 910910 in UN Comtrade data were China ($18M, 65% of world exports), Hong Kong ($1.9M) and Germany ($1.4M). World exports came to about $28M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of goods under HS code 910910?
In 2025, the top importers of HS code 910910 in UN Comtrade data were Hong Kong ($2.2M, 10% of world imports), Germany ($1.5M) and Japan ($1.1M). World imports came to about $21M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
How is HS code 910910 structured?
HS code 910910 is a 6-digit subheading under the Harmonized System. The first 2 digits (91) identify the chapter, digits 3-4 (09) identify the heading, and digits 5-6 (10) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 910910?
In Brazil, HS code 910910 is NCM 9109.10.00. The last two digits are 00 because Brazil does not split this HS code further.