Precision Flat Hairspring for Pocket Watches
Flat spiral hairspring for antique-style pocket watch restoration, made from blued steel wire for visual appeal and function. HTS 7320.90.1000 applies to all hairsprings of iron/steel regardless of watch type, as horological regulating springs.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imitation jewelry components
Hairsprings sold purely as decorative watch parts without functional intent classify as imitation jewelry.
If larger diameter for marine chronometers
Oversized hairsprings (>16mm cross-section) for ship chronometers may classify as other spring types.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Specify 'for horological restoration' on commercial invoice to prevent industrial spring misclassification
• Package individually wrapped to avoid damage claims and maintain separate classification
• For vintage replicas, include historical pattern documentation for potential cultural property reviews
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