Silicon Hairspring for Luxury Chronometers from China
Advanced silicon hairspring for high-end chronometer-grade watches, offering antimagnetic properties and improved isochronism. Classified under HTS 9114.90.34.00 as a hairspring for watch movements per chapter definition of time-regulating devices.
Duty Rate — China → United States
24.8%
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
9903.88.157.5%Except as provided in headings 9903.88.39, 9903.88.42, 9903.88.44, 9903.88.47, 9903.88.49, 9903.88.51, 9903.88.53, 9903.88.55, 9903.88.57, 9903.88.65, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(r) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(s)
Import Tips
• Include material analysis certificates proving silicon construction; avoids precious metal misclassification
• Document end-use as watch movements only; silicon hairsprings must meet watch dimension specs
• Beware of set classification if shipped with balance wheel - may shift to complete movement heading 9108