Nivarox Hairspring for Mechanical Watches
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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If constructed for escapement-free timekeeping devices
Chapter note 1(e) excludes articles of heading 8412 designed without escapement from chapter 91 classification.
If made of base metal for general industrial use
Chapter note 1(c) directs base metal parts of general use to section XV, excluding clock/watch-specific springs.
If suitable for both watches and other electronic instruments
Chapter note 4 specifies multi-use parts (not exclusively for clocks/watches) classify in chapter 85.
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Import Tips & Compliance
• 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
Related Products under HTS 9114.90.38.00
Balance Spring for Quartz-Analog Watch Movements
A hairspring component for quartz-regulated watch movements with mechanical display, ensuring precise time intervals as defined in chapter note 3. Classified under HTS 9114.90.38.00 as 'other' watch springs, separate from unassembled chapter 85 parts.
Incabloc Shock-Protected Hairspring
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.
Breguet Overcoil Hairspring
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.
Flat Hairspring for Vintage Pocket Watch Restoration
Traditional flat hairspring for restoring antique mechanical pocket watches, fitting movements under 50mm diameter limit. HTS 9114.90.38.00 covers such 'other' springs as clock/watch parts despite restoration context.
Silicon Hairspring for Modern Diver's Watches
Anti-magnetic silicon hairspring for professional diver's watches, offering corrosion resistance and stability. Falls under HTS 9114.90.38.00 as innovative 'other' watch spring technology for timekeeping regulation.
Power Reserve Indicator Mainspring
Extended mainspring barrel for watches with 7+ day power reserve indicators, powering complex mechanical movements. HTS 9114.90.38.00 includes such high-capacity 'other' springs as essential watch parts.