Nivarox Hairspring for Mechanical Watches from Japan
A Nivarox alloy hairspring designed for mechanical watch movements, regulating the oscillation of the balance wheel to maintain accurate timekeeping. It falls under HTS 9114.90.38.00 as an 'other' spring specifically for clock or watch use, distinct from general use parts excluded by chapter notes.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Verify the spring is specifically for watch movements (under 12mm thick/50mm wide per chapter note 3) to avoid reclassification to chapter 85
• Include technical specs and end-use certification proving clock/watch exclusivity, as dual-use parts may shift to other headings
• Watch for anti-dumping duties on precision springs from certain origins; declare material composition accurately