HS code · 6-digit subheading
HS Code 9109.90 – Clock movements; complete and assembled, other than electrically operated
HS code 9109.90 is the 6-digit subheading for clock movements, complete and assembled, other than electrically operated. It is used for mechanical clock movements, weight-driven clock movements, spring-driven clock movements, cuckoo clock movements and grandfather clock movements.
What HS 9109.90 covers
This 'other' HS code for clock movements encompasses all complete and assembled clock mechanisms that are not electrically operated. This primarily refers to traditional mechanical clock movements, which are driven by springs or weights and feature intricate gear trains and escapements. These movements are found in classic timepieces such as grandfather clocks, mantel clocks, and cuckoo clocks, valued for their craftsmanship, often producing chimes or striking mechanisms. Importers are typically high-end clock manufacturers, antique restorers, and specialized craftspeople who appreciate traditional horology. Exporters are often heritage manufacturers with long traditions in mechanical clockmaking. Key aspects in trade include the complexity of the chime sequences, power reserve, and the materials and finishing used in their construction.
- Covers
- Mechanical clock movements
- Weight-driven clock movements
- Spring-driven clock movements
- Cuckoo clock movements
- Grandfather clock movements
- Mantel clock movements
- Chime clock movements (mechanical)
- Examples
- Hermle Mechanical Clock Movements
- Kieninger Mechanical Clock Movements
- Urgos Mechanical Clock Movements
- Regula Cuckoo Clock Movements
- Comitti of London Mechanical Movements
Codes often confused with 9109.90
Common mistake. Clearly distinguished from 910910 by the absence of electrical operation; these are purely mechanical movements, often requiring manual winding or weight adjustment.
Top exporters and importers of HS code 910990, 2025
In 2025, the largest exporter of HS code 910990 in UN Comtrade data was Germany, with 36% of world exports; the largest importer in UN Comtrade data was the United States, with 31% 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 Germany $3.6M 36% of world exports
- 2 Switzerland $1.8M 18% of world exports
- 3 Italy $1.6M 16% of world exports
World total: $10M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $3.7M 31% of world imports
- 2 India $2.2M 19% of world imports
- 3 Germany $711K 6.0% of world imports
World total: $12M 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 9109.90
Brazil does not split HS 9109.90: its NCM code is 9109.90.00.
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 9109.90
What is HS code 910990?
HS code 910990 is a 6-digit subheading in the Harmonized System that covers: Clock movements; complete and assembled, other than electrically operated. This 'other' HS code for clock movements encompasses all complete and assembled clock mechanisms that are not electrically operated. This primarily refers to traditional mechanical clock movements, which are driven by springs or weights and feature intricate gear trains and escapements. These movements are found in classic timepieces such as grandfather clocks, mantel clocks, and cuckoo clocks, valued for their craftsmanship, often producing chimes or striking mechanisms. Importers are typically high-end clock manufacturers, antique restorers, and specialized craftspeople who appreciate traditional horology. Exporters are often heritage manufacturers with long traditions in mechanical clockmaking. Key aspects in trade include the complexity of the chime sequences, power reserve, and the materials and finishing used in their construction.
What products fall under HS code 910990?
Mechanical clock movements, weight-driven clock movements, spring-driven clock movements, cuckoo clock movements, grandfather clock movements, mantel clock movements, chime clock movements (mechanical)
What are common misclassifications for HS code 910990?
Clearly distinguished from 910910 by the absence of electrical operation; these are purely mechanical movements, often requiring manual winding or weight adjustment.
Which countries are the top exporters of goods under HS code 910990?
In 2025, the top exporters of HS code 910990 in UN Comtrade data were Germany ($3.6M, 36% of world exports), Switzerland ($1.8M) and Italy ($1.6M). World exports came to about $10M, 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 910990?
In 2025, the top importers of HS code 910990 in UN Comtrade data were the United States ($3.7M, 31% of world imports), India ($2.2M) and Germany ($711K). World imports came to about $12M, 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 910990 structured?
HS code 910990 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 (90) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 910990?
In Brazil, HS code 910990 is NCM 9109.90.00. The last two digits are 00 because Brazil does not split this HS code further.