Glucydur Hairspring for ETA Movements from Mexico
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 — Mexico → United States
50%
Rate breakdown
9903.82.0250%Except as provided for in headings 9903.82.14, 9903.85.67 and 9903.85.68, articles of aluminum, of steel or of copper and derivative aluminum or steel articles, as provided for in subdivisions (c)(i)–(v) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
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