Main Spring Barrel Assembly for Automatic Watches
Complete mainspring barrel with bridle and cover, powering automatic watch movements through rotor energy storage. HTS 9114.90.34.00 covers this as a spring for watches, distinct from general-use springs.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If constituting complete watch movement
Assembled movements with balance/hairspring system classified in heading 9108, not parts.
If sold as loose barrel springs without watch designation
Base metal articles of general use excluded by note 1(c) to section XV.
If for electric motor applications
Spring motors for non-timekeeping uses fall under chapter 85 electric machinery.
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Import Tips & Compliance
• Classify as parts not complete movements; provide diagrams showing missing escapement per note 1(e)
• Ensure documentation specifies watch caliber compatibility (e.g
• ETA 2824, Sellita SW200)
• Avoid bulk packaging that suggests general industrial use; retail watch part presentation preferred
Related Products under HTS 9114.90.34.00
Nivarox Hairspring for Mechanical Watches
A Nivarox alloy hairspring designed for mechanical watch movements, regulating oscillation frequency for precise timekeeping. It falls under HTS 9114.90.34.00 as a spring specifically for watches, essential for balance wheel operation in automatic and manual timepieces.
Silicon Hairspring for Luxury Chronometers
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.
Balance Spring Assembly for Dive Watches
Pre-assembled balance spring with collet and stud for professional dive watches, rated to 300m water resistance. Falls under HTS 9114.90.34.00 as watch-specific hairsprings per chapter 91 scope.
Glucydur Balance Spring for Chronograph Watches
Glucydur alloy balance spring optimized for high-frequency chronograph movements (4Hz operation). Classified in HTS 9114.90.34.00 as a hairspring for watch timekeeping regulation.
Incabloc Shock-Protected Hairspring
Hairspring with Incabloc shock protection system for rugged sports watches. HTS 9114.90.34.00 applies as it's a watch spring, not excluded general-use part.
Regulator Index Spring for Watchmakers
Fine adjustment regulator spring for hairspring collet positioning in watch servicing. Specific to watch regulation, thus HTS 9114.90.34.00 for watch springs.