Anti-Shock Breguet Hairspring
A specialized hairspring for mechanical watch movements, made from steel wire and featuring a Breguet terminal curve for improved isochronism. It is designed to regulate the oscillation of the balance wheel, ensuring accurate timekeeping. This product falls under tariff item 7320.90.00 as an 'other' spring of iron or steel, not being a leaf spring or a clock or watch spring of heading 91.14.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | +50.0% | 50% |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | Free |
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If the hairspring is imported as part of a clock or watch movement
Clock or watch springs are excluded from Chapter 73 by Section Note 1(h) and fall under heading 91.14.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Ensure the hairspring is declared as a spring of iron or steel, not as a clock or watch part (heading 91.14)
• Provide a detailed product description and material composition to the CBSA
• Verify the Most-Favoured-Nation (MFN) duty rate for this tariff item, as it may vary based on the country of origin
Related Products under Tariff item 7320.90.00
Belleville Disc Spring
A conical disc-shaped steel spring that stacks for high load capacity, used in bolted joints and safety valves. It is a spring of iron or steel, not being a leaf spring or a clock/watch spring. This product is classified under tariff item 7320.90.00 as an 'other' spring.
Bowed V-Spring Washer
A V-profile steel washer spring providing light axial force in assemblies. It is a spring of iron or steel, not being a leaf spring or a clock/watch spring. This product falls under tariff item 7320.90.00 as an 'other' spring.
Brelet Breguet Overcoil Hairspring
A premium Breguet-style overcoil hairspring for chronometer-grade watches, crafted from high-elasticity steel to minimize isochronism errors. It is a specialized spring used in mechanical timepieces to regulate balance wheel oscillation. This product is classified under tariff item 7320.90.00 as an 'other' spring of iron or steel.
Cantilever Spring Arm
A single-arm steel spring deflecting under load for parking brakes and levers. It is a spring of iron or steel, not being a leaf spring or a clock/watch spring. This product is classified under tariff item 7320.90.00 as an 'other' spring.
Carbon Steel Extension Spring
A wire-formed extension spring made of carbon steel, featuring loops at each end for tensile applications in tools and appliances. It is classified under tariff item 7320.90.00 as an 'other' spring of iron or steel, distinct from leaf springs or vehicle-specific springs.
Clock Spring for Steering Columns
A flat spiral steel spring wound in a clock-like coil for storing rotational energy in turn signal mechanisms. It is a spring of iron or steel, not being a clock or watch spring of heading 91.14. This product falls under tariff item 7320.90.00 as an 'other' spring.