Product classification

HS code for Mechanical watch movements: 9108.90

Watch movements, complete and assembled, not automatic winding or electrically operated.

Classification of mechanical watch movements under HS 9108.90

Mechanical watch movements that are complete and assembled are classified under HS code 910890. This code is part of Chapter 91, which deals with horological instruments. Heading 9108 specifically addresses watch movements that are fully assembled. The subheading 910890 is a residual category for movements that are neither electrically operated (such as quartz movements) nor automatic winding. Therefore, it primarily covers manual-wind mechanical movements. The classification is based on the state of assembly (complete), the intended use (for watches), and the mechanism of operation (manual mechanical). To qualify as a watch movement under Chapter Note 3, the movement must be regulated by a balance wheel and hairspring, quartz crystal, or any other system capable of determining intervals of time, and it must not exceed 12mm in thickness or 50mm in width/diameter. Manual movements are distinguished by their reliance on a mainspring that must be tensioned by hand via a crown.

Covers
  • Manual-wind mechanical watch movements
  • Hand-wound chronograph movements
  • Assembled mechanical movements for pocket watches
  • Skeletonized manual watch movements
Also under 9108.90
  • ETA/Unitas 6497 Movement
  • Peseux 7001 Movement
  • Seagull ST3600 Movement
  • Molnija 3603 Movement
  • Landeron 48 Chronograph Movement

Codes often confused with 9108.90

Common mistake. Mechanical watch movements are often confused with automatic winding movements, which are classified under 910820. They are also frequently misclassified with battery-powered (quartz) movements, which fall under 910811 to 910819. Furthermore, if the movement is not fully assembled, it must be classified under heading 9110 as incomplete or partially assembled movements, rather than 910890.

9108.20Watch movements; complete and assembled, with automatic winding9108.11Watch movements; complete and assembled, electrically operated, with mechanical display only or with a device to which a mechanical display can be incorporated9108.19Watch movements; complete and assembled, electrically operated, by means of solar cells, without mechanical display or device including such or opto-electronic display91.10Watch or clock movements, complete, unassembled or partly assembled (movement sets); incomplete watch or clock movements, assembled; rough watch or clock movements

Top exporters and importers of HS 910890 (the code used for mechanical watch movements), 2025

In 2025, the largest exporter of HS 910890 (the code used for mechanical watch movements) in UN Comtrade data was Switzerland, with 22% of world exports; the largest importer in UN Comtrade data was Macao, with 23% 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 910890, not only mechanical watch movements.

Top exporters 2025 · share of world exports

  1. 1 Switzerland $6.8M
  2. 2 United States $5.9M
  3. 3 Netherlands $3.0M

World total: $31M Reported figures on UN Comtrade ↗

Top importers 2025 · share of world imports

  1. 1 Macao $10.0M
  2. 2 United States $8.1M
  3. 3 United Kingdom $4.2M

World total: $44M 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 mechanical watch movements

Brazil classifies mechanical watch movements under NCM 9108.90.00: HS 9108.90 with 00 added.

Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.

Questions about mechanical watch movements

What is the HS code for Mechanical watch movements?

The HS code for Mechanical watch movements is 910890 (Watch movements; complete and assembled, not automatic winding or electrically operated). The HS code for complete and assembled manual mechanical watch movements is 910890.

How do I classify Mechanical watch movements for customs?

Mechanical watch movements is classified under HS code 910890 — Watch movements; complete and assembled, not automatic winding or electrically operated. This is a 6-digit subheading level code.

Are automatic watch movements included in this code?

No, automatic (self-winding) mechanical movements are classified under HS code 910820.

Which countries are the top exporters of mechanical watch movements (HS 910890)?

In 2025, the top exporters of HS 910890 (the code used for mechanical watch movements) in UN Comtrade data were Switzerland ($6.8M, 22% of world exports), the United States ($5.9M) and the Netherlands ($3.0M). World exports came to about $31M, 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 mechanical watch movements (HS 910890)?

In 2025, the top importers of HS 910890 (the code used for mechanical watch movements) in UN Comtrade data were Macao ($10.0M, 23% of world imports), the United States ($8.1M) and the United Kingdom ($4.2M). World imports came to about $44M, 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 Mechanical watch movements the same in all countries?

The base HS code 910890 for Mechanical 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 mechanical watch movements in Brazil?

In Brazil, mechanical watch movements (HS 910890) is classified under NCM 9108.90.00.