Product classification
HS code for Clock movements: 9110.90
Clocks, movements, whether or not complete, incomplete, assembled or unassembled.
Classification of clock movements under HS 9110.90
Clock movements are classified under HS code 9110.90 when they are complete movements that are unassembled or partly assembled, or incomplete movements that are assembled. This classification is part of Chapter 91, which deals with horological instruments. A clock movement is defined as the complete set of mechanical or electronic components (gear train, escapement, power source) that allows a clock to function. Heading 9110 is unique because it covers 'pre-assembled' or 'unassembled' movements, often referred to in the industry as ébauches. The subheading 9110.90 specifically excludes watch movements, which are covered in the earlier subheadings of the same category. The classification is determined by the intended use of the movement in a clock rather than a watch. This code is essential for manufacturers who import movement kits for local assembly. It also includes 'rough' movements, which are sets of components that require further machining or the addition of certain parts (like the hairspring or balance wheel) to become a functional movement.
- Covers
- Unassembled mechanical clock movements
- Partly assembled electronic clock movements
- Incomplete clock movements with main plates and bridges
- Rough clock movements (ébauches)
- Sets of clock movement parts intended for assembly
- Also under 9110.90
- Hermle mechanical clock movement
- Kieninger clock movement
- Seiko quartz clock movement
- UTS quartz movement
- Rhythm clock movement
- Junghans radio-controlled movement.
Codes often confused with 9110.90
Common mistake. Clock movements are frequently confused with HS code 9109, which covers complete and assembled clock movements. The distinction is that 9110.90 is for movements that are NOT yet fully assembled or are incomplete. Another common misclassification is under 9108, which is the heading for watch movements. Watch movements are generally smaller (usually not exceeding 12mm in thickness or 33.8mm in width/diameter). If a movement exceeds these dimensions or is designed for a wall, desk, or floor clock, it must be classified as a clock movement.
Top exporters and importers of HS 911090 (the code used for clock movements), 2025
In 2025, the largest exporter of HS 911090 (the code used for clock movements) in UN Comtrade data was Thailand, with 40% of world exports; the largest importer in UN Comtrade data was the United States, with 16% 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 911090, not only clock movements.
Top exporters 2025 · share of world exports
- 1 Thailand $9.5M 40% of world exports
- 2 Italy $5.1M 21% of world exports
- 3 China $2.2M 9.0% of world exports
World total: $24M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $1.5M 16% of world imports
- 2 Qatar* ~$1.2M 13% of world imports · partner records ↗
- 3 Thailand $1.1M 12% of world imports
World total: $9.1M 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 marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. 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 clock movements
Brazil classifies clock movements under NCM 9110.90.00: HS 9110.90 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about clock movements
What is the HS code for Clock movements?
The HS code for Clock movements is 911090 (Clocks; movements, whether or not complete, incomplete, assembled or unassembled). Complete but unassembled or partly assembled clock movements are classified under HS code 9110.90.
How do I classify Clock movements for customs?
Clock movements is classified under HS code 911090 — Clocks; movements, whether or not complete, incomplete, assembled or unassembled. This is a 6-digit subheading level code.
What is the difference between HS 9109 and 9110.90?
HS code 9109 is for clock movements that are already fully assembled and functional. HS code 9110.90 is for movements that are imported as kits, unassembled, or are missing key components.
Which countries are the top exporters of clock movements (HS 911090)?
In 2025, the top exporters of HS 911090 (the code used for clock movements) in UN Comtrade data were Thailand ($9.5M, 40% of world exports), Italy ($5.1M) and China ($2.2M). World exports came to about $24M, 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 clock movements (HS 911090)?
In 2025, the top importers of HS 911090 (the code used for clock movements) in UN Comtrade data were the United States ($1.5M, 16% of world imports), Qatar (about $1.2M) and Thailand ($1.1M). World imports came to about $9.1M, 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 Clock movements the same in all countries?
The base HS code 911090 for Clock movements 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 clock movements in Brazil?
In Brazil, clock movements (HS 911090) is classified under NCM 9110.90.00.