Incabloc Shock-Protected Hairspring from Canada
A shock-resistant hairspring with Incabloc mounting system for luxury mechanical watches, regulating balance wheel oscillations. Falls under HTS 9114.90.38.00 as specialized 'other' watch springs for precise timekeeping.
Duty Rate — Canada → United States
14.2%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Document shock protection patents/trademarks to prove watch-specific engineering, avoiding general parts classification
• Ensure packaging identifies end-use for 'watch movements only' to support chapter 91 over chapter 73/85 alternatives
• Monitor for preferential tariff treatment under US insular possessions rules for watch components (US note b)