Breguet Overcoil Hairspring from Mexico
Traditional Breguet-style overcoil hairspring for high-end chronometer movements, improving isochronism in mechanical watches. Classified in HTS 9114.90.38.00 as 'other' precision watch springs per chapter definitions.
Duty Rate — Mexico → United States
14.2%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Provide COSC chronometer certification references to establish precision watch end-use justifying chapter 91
• Declare exact alloy composition (Nivarox, Elinvar) as undervaluation of specialty materials triggers audits
• For sets with balance wheels, use GRI 3 rules carefully; individual springs maintain 9114 classification