Chapter 91 — Clocks and watches and parts thereof 4-digit heading

91.10 Watch or clock movements, complete, unassembled or partly assembled (movement sets); incomplete watch or clock movements, assembled; rough watch or clock movements

One level above the number you declare. Pick one of the six-digit codes below.

Section XVIII, Instruments & Clocks — optical, photographic, measuring and medical instruments, clocks and musical instruments.

  1. 91 Chapter Clocks and watches and parts thereof
  2. 10 Heading Watch or clock movements, complete, unassembled or partly assembled (movement sets); incomplete watch or clock movements, assembled; rough watch or clock movements
  3. —— Subheading Pick one of the 4 six-digit codes below

Chapter 91 covers clocks and watches and parts thereof: timepieces of every kind, classified largely by movement type (mechanical vs. electronic) and case material. Classification tip: Watch case material (precious metal versus base metal) and movement type both affect the subheading, and precious-metal watch cases can additionally fall under hallmarking rules in some import markets.

All of chapter 91

The wording above is the Harmonized System nomenclature as published by the World Customs Organization, HS 2022 edition. It is a classification reference, not a tariff: it carries no duty rates, and it stops at six digits — the importing country adds its own beyond that.

Classification is decided by the General Rules of Interpretation and the section and chapter notes, and it is the importing country’s customs authority that makes it binding.

Shipping goods under 91.10? A customs hold shows up as a milestone that stops moving — follow the container or the air waybill from departure to delivery.

Track a shipment

91.10 FAQ

Heading 91.10 covers watch or clock movements, complete, unassembled or partly assembled (movement sets); incomplete watch or clock movements, assembled; rough watch or clock movements. It is part of chapter 91 (clocks and watches and parts thereof), and it is subdivided into 4 six-digit subheadings — the level you actually declare.

Pick one of the 4 subheadings below. Those six digits are what customs recognises internationally; the importing country may extend them to eight or ten in its own tariff schedule.

The General Rules of Interpretation, read together with the notes to Section XVIII and to chapter 91. A description that reads right is not enough on its own — the notes routinely pull goods out of the chapter they obviously belong to and put them somewhere else. Where duty or licensing turns on the answer, ask the importing country’s customs authority for a binding ruling.

A wrong or missing code is one of the common reasons customs holds a container, and a hold shows up as a milestone that stops moving. Watch for it in the container tracking app, on the air waybill in the air cargo tracker, or through the tracking API.