HS 910390 Other
Quick Answer: Time-of-day or other mechanisms, not incorporating a timepiece, for automatically controlling the operation of other apparatus, imported under HS 910390, enters the UK at 4.00%, the EU at 4.70%, and the US at 24¢ each + 4.6% on the case, with free entry available from certain preferential trade partners. This "Other" classification within Chapter 91 of the Harmonized System captures devices that act as timers or controllers for other equipment but do not contain their own clock mechanism. Significant trade considerations include the complex US duty structure, which combines a per-unit charge with an ad valorem rate, and the availability of duty-free entry for qualifying countries. CustomTariffs aggregates this information to assist trade professionals.
What Are the Import Duty Rates?
🇬🇧 United Kingdom
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 9103900000 | 4.00 % | — | — |
🇪🇺 European Union (TARIC)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 9103900000 | 4.70 % | — | — |
🇺🇸 United States (HTSUS)
| Code | MFN | Preferential | Unit |
|---|---|---|---|
| 91039000 | 24¢ each + 4.6% on the case | Free (17 programs) | — |
Special rates available under trade agreements including USMCA, KORUS, GSP.
Duty rates sourced from the USITC (US International Trade Commission) Harmonized Tariff Schedule (HTS) (accessed 2/22/2026), EU TARIC – DG TAXUD (Directorate-General for Taxation and Customs Union) (accessed 2/22/2026), and UK Trade Tariff – HMRC (His Majesty's Revenue and Customs) (accessed 2/22/2026).
Data compiled and presented by HSRates.
Which Trade Agreements Reduce Duties for HS 9103.90?
Imports of Other may qualify for reduced or zero duty rates under free trade agreements and preferential programs. The overview below shows available preferential arrangements by jurisdiction, compiled by HSRates from official tariff and trade agreement data.
United States (HTSUS)
Free for USMCA, KORUS, and 15 other programs
European Union (TARIC)
Preferential rate data not yet available.
United Kingdom
Preferential rate data not yet available.
Preferential rates require proof of origin and may be subject to quotas or conditions. Always verify eligibility with a licensed customs broker.
Data compiled by HSRates.
Which Preferential Rates Apply to Your Origin Country?
Select an origin country to see if preferential rates apply.
Preferential rates based on available trade agreements. Actual rates may vary.
How Has Trade Volume Developed?
Trade Volume 2023
How to Classify This HS Code?
What products does HS 910390 cover?
This subheading covers "Other" watches and clocks, specifically those not covered by the preceding subheadings within HS 9103. According to the World Customs Organization (WCO) Harmonized System Explanatory Notes, this category is residual and applies to watches and clocks that do not fit into more specific classifications. For instance, in the United States, the Harmonized Tariff Schedule (HTS) defines this as other watches and clocks, including those with multiple functions not explicitly detailed elsewhere, and often refers to the general definitions within Chapter 91 of the HTS.
What falls outside HS 910390?
The following products are excluded from HS 910390: complete watches and clocks of precious metal or metal clad with precious metal (HS 9101), watches and clocks with mechanical movements (HS 9102), and parts of watches and clocks (HS 9113). For example, a pocket watch with a mechanical movement would be classified under HS 9102, not this residual category. Similarly, individual watch straps or casings, even if intended for watches classified under 910390, are typically classified as parts under HS 9113.
What are common classification mistakes for HS 910390?
A common error is misclassifying complex timekeeping devices that incorporate functions beyond simple time display. For example, a smart watch with advanced health monitoring and communication features might be incorrectly placed here if its primary function is not solely timekeeping. According to General Rule of Interpretation (GRI) 3(b), when goods are put up in sets for retail sale, they should be classified according to the component that gives them their essential character, which for a smart watch is often its electronic functionality rather than just its timekeeping aspect, leading to classification in Chapter 85.
How should importers classify products under HS 910390?
The correct procedure for classifying products under HS 910390 involves a thorough examination of the product's characteristics and intended use, referencing the WCO HS Nomenclature and specific national tariff schedules like the USITC HTS or EU TARIC. Importers and customs brokers must first determine if the product is a watch or clock. If it is, they should then check if it falls under more specific headings or subheadings within Chapter 91. Only if the product is a watch or clock and does not fit any other specific classification should it be considered for HS 910390.
How is the duty calculated for products under HS 910390?
A digital alarm clock with a plastic casing, weighing 0.5 kg and declared at a customs value of $50.00 USD, would attract a US duty of $2.50. This is calculated using the Most Favored Nation (MFN) duty rate of 5.0% ad valorem, applied to the declared value ($50.00 × 0.05 = $2.50). This calculation is based on the rates published in the USITC Harmonized Tariff Schedule for subheading 9103.90.0000.
Which trade agreements reduce duties for HS 910390?
Several free trade agreements may reduce the applicable duty rate for HS 910390, including the United States-Mexico-Canada Agreement (USMCA). Under USMCA, originating watches and clocks from Canada and Mexico can enter the United States duty-free. To claim this preference, a valid USMCA certification of origin is required. Additionally, certain developing countries may benefit from the Generalized System of Preferences (GSP) in some jurisdictions, potentially offering reduced or zero duty rates, requiring a GSP Form A. The specific preferential rate and documentation depend on the country of origin and the importing country's regulations.
```Which HS Codes Are Related?
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FAQ
What are the typical import duty rates for HS code 910390, and how do preferential trade agreements affect them?
HS code 910390, designated for 'Other' watch movements, has varying Most Favored Nation (MFN) duty rates. For example, the USITC Harmonized Tariff Schedule may list rates such as 4.00% or 4.70% ad valorem. Additionally, specific duties like '24¢ each + 4.6% on the case' can apply. Preferential trade agreements significantly reduce or eliminate these duties. For instance, under agreements with countries like Australia (AU), Canada (CA), South Korea (KR), or Singapore (SG), goods may enter duty-free (Free). It is crucial to consult the relevant tariff schedule (e.g., USITC for the US, EU TARIC for the EU) for the specific origin of the goods and applicable preferential rates.
How is the duty calculated for HS code 910390 when a specific duty is involved?
When a specific duty is applied to HS code 910390, the calculation involves both a per-unit charge and an ad valorem percentage. For instance, if a rate is '24¢ each + 4.6% on the case', and you import 100 watch movements with cases valued at $50 each, the duty would be calculated as follows: (100 movements * $0.24/movement) + (4.6% * (100 cases * $50/case)) = $24 + (0.046 * $5000) = $24 + $230 = $254. This combined duty structure ensures a minimum revenue regardless of value while also capturing value-based duties.
What are the key classification criteria to ensure goods are correctly classified under HS 910390?
HS code 910390 is an 'Other' category, meaning it applies to watch movements not specifically enumerated in preceding headings within Chapter 91 of the Harmonized System. To correctly classify under 910390, the goods must be watch movements (devices for indicating time, powered by a spring or electric motor, and designed to be incorporated into a watch) that do not meet the specific criteria for other headings, such as those for complete watches, clocks, or specific types of movements (e.g., mechanical movements of a certain size or type). Verification often involves examining the technical specifications, intended use, and the absence of features that would place them in a more specific HS code. Consulting the Explanatory Notes to the Harmonized System is recommended.
What documentation is typically required for importing goods classified under HS 910390?
Standard import documentation for HS code 910390 generally includes a commercial invoice detailing the value, quantity, and description of the goods; a packing list; and a bill of lading or air waybill. Crucially, to benefit from preferential duty rates under trade agreements (e.g., USMCA, EU Free Trade Agreements), a Certificate of Origin is usually mandatory. Importers may also need to provide technical specifications or product literature to substantiate the classification, especially if the goods are novel or complex. Customs brokers should verify the specific requirements based on the importing country and the origin of the goods.
Which common trade agreements offer preferential duty treatment for HS code 910390, and what are their general implications?
Several trade agreements can grant preferential duty treatment for HS code 910390. For example, agreements like the US-Korea Free Trade Agreement (KORUS FTA), the Australia-United States Free Trade Agreement (AUSFTA), and agreements with Central American nations (CAFTA-DR) often provide reduced or duty-free entry for qualifying goods originating from these partner countries. The general implication is a significant cost saving for importers. To claim these benefits, goods must meet the rules of origin stipulated in each agreement, and proper documentation, such as a Certificate of Origin, must be submitted to customs authorities at the time of import. Always refer to the specific text of the trade agreement and the importing country's customs regulations.