Incabloc Shockproof Hairspring from Mexico
An Incabloc system hairspring with integrated shock protection for luxury mechanical watch movements, made from tempered steel wire. Classified under HTS 7320.90.1000 due to its specific role as a hairspring in horology, derived from iron/steel wire.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Provide movement compatibility diagrams and alloy specs to customs for hairspring verification
• Avoid bundling with collets or studs, as sets may shift to Chapter 91 classification
• Use ISO 9001 certified suppliers to ensure traceability for anti-dumping scrutiny on steel products