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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If pre-assembled into complete clock movements
Fully assembled movements classify in heading 9105, not as separate parts in 9114.
If gold/silver alloy hairsprings (base <50%)
Precious metal articles (even watch parts) may shift to chapter 71 if composition qualifies.
If iron/steel springs sold for multiple end-uses
General metal springs of heading 7320 exclude watch-specific hairsprings per chapter note.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• 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
Related Products under HTS 9114.90.38.00
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.
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.
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.