Product classification
HS code for Quartz clocks: 9103.10
Clocks, with watch movements, electrically operated, excluding clocks of heading no. 9104.
Classification of quartz clocks under HS 9103.10
Quartz clocks with watch movements are classified under HS code 9103.10. This specific classification is found in Chapter 91. Heading 9103 is unique because it covers clocks that utilize movements typically found in wristwatches or pocket watches. According to the General Rules of Interpretation and the Chapter Notes for Chapter 91, a "watch movement" is defined by its size: it must not exceed 12 mm in thickness and its width, length, or diameter must not exceed 50 mm. If a quartz clock, such as a small travel clock or a decorative desk clock, uses a movement meeting these specific dimensions and is electrically operated, it must be classified here rather than under the general clock heading of 9105. This distinction is crucial for customs purposes as it recognizes the precision and miniaturization of the internal components. The classification 9103.10 specifically covers the electrically operated (quartz) versions of these clocks, which are powered by batteries or other electrical sources to vibrate a quartz crystal for timekeeping.
- Covers
- Small quartz desk clocks with watch movements
- Travel quartz clocks using watch-sized movements
- Miniature decorative quartz clocks
- Quartz table clocks with movements under 50mm wide
- Dashboard-style quartz clocks not for vehicles
- Also under 9103.10
- Seiko QXA series desk clocks
- Citizen desk clocks
- Braun BC08
- AcuRite atomic clocks
- Rhythm electric mantel clocks
Codes often confused with 9103.10
Common mistake. These clocks are frequently misclassified under 9105.91, which is for other electrically operated clocks. The error occurs when the size of the internal movement is not measured. They may also be confused with 9101 or 9102, but those headings are for watches intended to be worn on the person. If the clock is designed for a vehicle instrument panel, it must be classified under 9104.00.
Top exporters and importers of HS 910310 (the code used for quartz clocks), 2025
In 2025, the largest exporter of HS 910310 (the code used for quartz clocks) in UN Comtrade data was Switzerland, with 21% of world exports; the largest importer in UN Comtrade data was Germany, with 10% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 910310, not only quartz clocks.
Top exporters 2025 · share of world exports
- 1 Switzerland $5.7M 21% of world exports
- 2 Germany $3.4M 13% of world exports
- 3 China $3.0M 11% of world exports
World total: $27M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Germany $4.3M 10% of world imports
- 2 France $3.2M 7.7% of world imports
- 3 Switzerland $3.0M 7.4% of world imports
World total: $41M 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 quartz clocks
Brazil classifies quartz clocks under NCM 9103.10.00: HS 9103.10 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about quartz clocks
What is the HS code for Quartz clocks?
The HS code for Quartz clocks is 910310 (Clocks; with watch movements, electrically operated, excluding clocks of heading no. 9104). Quartz clocks that utilize watch movements (under 50mm wide and 12mm thick) are classified under HS code 9103.10.
How do I classify Quartz clocks for customs?
Quartz clocks is classified under HS code 910310 — Clocks; with watch movements, electrically operated, excluding clocks of heading no. 9104. This is a 6-digit subheading level code.
How do I know if my clock has a watch movement?
You must measure the internal movement; if it is 50 mm or less in width and 12 mm or less in thickness, it is legally considered a watch movement for HS classification.
Which countries are the top exporters of quartz clocks (HS 910310)?
In 2025, the top exporters of HS 910310 (the code used for quartz clocks) in UN Comtrade data were Switzerland ($5.7M, 21% of world exports), Germany ($3.4M) and China ($3.0M). World exports came to about $27M, 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 quartz clocks (HS 910310)?
In 2025, the top importers of HS 910310 (the code used for quartz clocks) in UN Comtrade data were Germany ($4.3M, 10% of world imports), France ($3.2M) and Switzerland ($3.0M). World imports came to about $41M, 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.
Is the HS code for Quartz clocks the same in all countries?
The base HS code 910310 for Quartz clocks is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for quartz clocks in Brazil?
In Brazil, quartz clocks (HS 910310) is classified under NCM 9103.10.00.