Diver Watch Helium Escape Valve
One-way valves that allow helium to escape from watch cases during professional saturation diving. Classified in HTS 9114.90.50.00 as other specialized watch parts for extreme pressure environments. Screw-down design maintains water resistance.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If general pressure regulator valves
General valves classified in Chapter 84
If simple metal reservoirs
General metal reservoirs excluded from Chapter 91
If pressure indicating instruments
Measuring instruments classified in Chapter 90
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Import Tips & Compliance
• Provide pressure test certifications (300m+)
• Material safety data for titanium versions
• Classify separately from cases
Related Products under HTS 9114.90.50.00
Stainless Steel Watch Crown
A stainless steel winding crown used to set time and wind mechanical watches. It falls under HTS 9114.90.50.00 as an other clock or watch part, specifically a component for case interaction not classified elsewhere in heading 9114. This part is essential for user adjustment of watch functions.
Quartz Watch Battery Cover
A small metal or plastic cover that secures the battery in quartz watches. Classified under HTS 9114.90.50.00 as other watch parts, this component protects the power source and maintains water resistance. It is not a movement or case component.
Watch Hand Setting Lever
A precision lever mechanism that allows switching between time-setting and winding modes in mechanical watches. This part falls under HTS 9114.90.50.00 as other watch parts essential for movement operation. It interfaces directly with the crown and movement gears.
Sapphire Watch Crystal Gaskets
Rubber or silicone gaskets designed specifically for sealing sapphire watch crystals to cases. Classified in HTS 9114.90.50.00 as other watch parts providing water resistance. These are custom-shaped for watch case specifications.
Watch Movement Spacer Rings
Precision-machined rings that position watch movements within cases, ensuring proper alignment. These fall under HTS 9114.90.50.00 as other watch parts critical for assembly integrity. Available in various thicknesses for different movement sizes.
Automatic Watch Rotor Weights
Tungsten or gold-weighted rotors that provide winding power for automatic watch movements. Classified under HTS 9114.90.50.00 as other watch parts specific to self-winding mechanisms. These heavy components spin with wrist motion to power the watch.