# United States tariff lines under HS 9109.90

> The United States tariff splits HS 9109.90 (clock movements, complete and assembled) into 3 national lines: 9109.90.20.00 (measuring not over 50 mm in width or diameter), 9109.90.40.00 (valued not over $5 each) and 9109.90.60.00 (valued over $5 each). The general (MFN) duty differs by line: 20¢ each on 9109.90.20.00, 15¢ each + 6.4% on 9109.90.40.00 and 30¢ each + 4.3% on 9109.90.60.00.

Source: https://border.bot/countries/united-states/hs-codes/910990
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 91](https://border.bot/countries/united-states/hs-codes/91) / [9109.90](https://border.bot/countries/united-states/hs-codes/910990)

## Key facts

- HS subheading: [9109.90](https://border.bot/hs-codes/910990)
- National lines: 3
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 91: Clocks and watches and parts thereof

## United States lines under 9109.90

The United States tariff splits HS 9109.90 (clock movements, complete and assembled) into 3 national lines: 9109.90.20.00 (measuring not over 50 mm in width or diameter), 9109.90.40.00 (valued not over $5 each) and 9109.90.60.00 (valued over $5 each).

The general (MFN) duty differs by line: 20¢ each on 9109.90.20.00, 15¢ each + 6.4% on 9109.90.40.00 and 30¢ each + 4.3% on 9109.90.60.00.

- [9109.90.20.00](https://border.bot/countries/united-states/hs-codes/9109902000) Other, Measuring not over 50 mm in width or diameter. Duty (MFN): 20¢ each
- [9109.90.40.00](https://border.bot/countries/united-states/hs-codes/9109904000) Other, Other, Valued not over $5 each. Duty (MFN): 15¢ each + 6.4%
- [9109.90.60.00](https://border.bot/countries/united-states/hs-codes/9109906000) Other, Other, Valued over $5 each. Duty (MFN): 30¢ each + 4.3%

## In other countries

No other national tariff on border.bot has live lines under 9109.90 yet.

- [The Harmonized System text for 9109.90](https://border.bot/hs-codes/910990)

- Previous subheading: [9109.10](https://border.bot/countries/united-states/hs-codes/910910) Electrically operated
- Next subheading: [9110.12](https://border.bot/countries/united-states/hs-codes/911012) Complete watch or clock movements, unassembled or partly assembled (movement sets); incomplete watch or clock movements, assembled; rough watch or clock movements

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 9109.90?

The United States tariff splits HS 9109.90 (clock movements, complete and assembled) into 3 national lines: 9109.90.20.00 (measuring not over 50 mm in width or diameter), 9109.90.40.00 (valued not over $5 each) and 9109.90.60.00 (valued over $5 each).

### What is the duty on HS 9109.90 in the United States?

The general (MFN) duty differs by line: 20¢ each on 9109.90.20.00, 15¢ each + 6.4% on 9109.90.40.00 and 30¢ each + 4.3% on 9109.90.60.00.

## Sources and updates

The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

This page was last updated on 9 October 2026.

Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.

Official source files:

- https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false

Machine-readable: https://border.bot/countries/united-states/hs-codes/910990.json