Product classification
HS code for Automatic watch movements: 9108.20
Watch movements, complete and assembled, with automatic winding.
Classification of automatic watch movements under HS 9108.20
Automatic watch movements are classified under HS code 910820. This classification specifically encompasses watch movements that are complete and assembled, and are characterized by an automatic winding mechanism. The key elements for this classification are that the item must be a self-contained movement, fully assembled, and designed to wind itself through the motion of the wearer, eliminating the need for manual winding. This distinguishes them from movements that rely on manual winding or electrical power for operation.
- Covers
- Self-winding mechanical watch movements
- Automatic clockwork mechanisms for wristwatches
- Assembled automatic caliber movements
- Rotor-wound watch movements
- Also under 9108.20
- ETA 2824-2 Movement
- Miyota 9015 Movement
- Seiko NH35 Movement
- Sellita SW200-1 Movement
- Rolex Caliber 3235 Movement
Codes often confused with 9108.20
Common mistake. Automatic watch movements are sometimes confused with other watch movement types. HS code 910811 covers watch movements that are complete and assembled but operate electrically, often with no mechanical display only. The crucial distinction is the power source: automatic winding (mechanical) versus electrical operation. Another potential misclassification is with 910890, which covers other complete and assembled watch movements not specifically provided for, such as manual-winding mechanical movements. Furthermore, these movements should not be confused with complete automatic watches (HS 910221), as 910820 specifically refers to the internal mechanism only, not the cased timepiece.
Top exporters and importers of HS 910820 (the code used for automatic watch movements), 2025
In 2025, the largest exporter of HS 910820 (the code used for automatic watch movements) in UN Comtrade data was Switzerland, with 31% of world exports; the largest importer in UN Comtrade data was China, with 18% 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 910820, not only automatic watch movements.
Top exporters 2025 · share of world exports
- 1 Switzerland $103M 31% of world exports
- 2 Japan $69M 21% of world exports
- 3 Malaysia $58M 17% of world exports
World total: $335M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 China $39M 18% of world imports
- 2 Hong Kong $27M 12% of world imports
- 3 Switzerland $26M 12% of world imports
World total: $216M 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 automatic watch movements
Brazil classifies automatic watch movements under NCM 9108.20.00: HS 9108.20 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about automatic watch movements
What is the HS code for Automatic watch movements?
The HS code for Automatic watch movements is 910820 (Watch movements; complete and assembled, with automatic winding). The HS code for automatic watch movements is 910820. This code applies to watch movements that are complete, assembled, and feature an automatic winding mechanism.
How do I classify Automatic watch movements for customs?
Automatic watch movements is classified under HS code 910820 — Watch movements; complete and assembled, with automatic winding. This is a 6-digit subheading level code.
What distinguishes an automatic watch movement from a quartz movement?
An automatic watch movement (HS 910820) is a mechanical movement that winds itself through the kinetic energy generated by the wearer's motion, typically using a rotor. It does not require a battery. A quartz movement, conversely, is an electronic movement powered by a battery and regulated by a vibrating quartz crystal, offering high accuracy with minimal maintenance.
Which countries are the top exporters of automatic watch movements (HS 910820)?
In 2025, the top exporters of HS 910820 (the code used for automatic watch movements) in UN Comtrade data were Switzerland ($103M, 31% of world exports), Japan ($69M) and Malaysia ($58M). World exports came to about $335M, 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 automatic watch movements (HS 910820)?
In 2025, the top importers of HS 910820 (the code used for automatic watch movements) in UN Comtrade data were China ($39M, 18% of world imports), Hong Kong ($27M) and Switzerland ($26M). World imports came to about $216M, 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 Automatic watch movements the same in all countries?
The base HS code 910820 for Automatic watch 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 automatic watch movements in Brazil?
In Brazil, automatic watch movements (HS 910820) is classified under NCM 9108.20.00.