7320.90.10.00/Glucydur Hairspring for ETA Movements/Japan

Glucydur Hairspring for ETA Movements from Japan

Glucydur Nivaflex hairspring optimized for ETA 2824 and 2892 automatic watch calibers, providing temperature-stable oscillations. Falls under HTS 7320.90.1000 as iron/steel hairspring specifically engineered for watch balance wheel regulation.

Duty Rate — Japan → 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

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Import Tips

• Include NIST-traceable frequency certificates to prove horological function during customs exam

• Separate hairsprings from movement kits in shipments to maintain individual spring classification

• Beware of minimum value declarations; low-value hairsprings may qualify for de minimis but require aggregation