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Collection: Crystal Waterproof Gasket for Longines

Explore our complete range of Crystal waterproof gaskets for Longines, precision-engineered to create a reliable seal between the watch crystal and case. Designed for accurate fit across a wide range of Longines models, these gaskets are essential for maintaining water resistance, dust protection, and overall case integrity during crystal installation or replacement.


Manufactured from high-quality Teflon (PTFE), each gasket offers excellent chemical stability, low friction, and long-term resistance to compression and aging. Produced to precise dimensions and thickness tolerances, these PTFE crystal gaskets help ensure consistent sealing performance while preserving correct crystal height and pressure fit.


Ideal for professional watchmakers, service centers, and experienced repair technicians, these Longines-compatible PTFE crystal gaskets are perfect for crystal replacement, routine servicing, and water-resistance restoration. Restore your timepiece’s original sealing performance, durability, and reliability with precision-made components built for dependable long-term use.

63 products
  • Waterproof Crystal Grooved Gasket Compatible with Longines L4.750
    Waterproof Crystal Grooved Gasket Compatible with Longines L4.750
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
    per 
  • Waterproof Crystal Grooved Gasket Compatible with Longines L4.755
    Waterproof Crystal Grooved Gasket Compatible with Longines L4.755
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
    per 
  • Waterproof Crystal Grooved Gasket Compatible with Longines L4.709
    Waterproof Crystal Grooved Gasket Compatible with Longines L4.709
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
    per 
  • Waterproof Crystal Grooved Gasket Compatible with Longines L4.708
    Waterproof Crystal Grooved Gasket Compatible with Longines L4.708
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
    per 
  • Waterproof Crystal Grooved Gasket Compatible with Longines L4.691
    Waterproof Crystal Grooved Gasket Compatible with Longines L4.691
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
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  • Waterproof Crystal Grooved Gasket Compatible with Longines L4.241
    Waterproof Crystal Grooved Gasket Compatible with Longines L4.241
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
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  • Waterproof Crystal Grooved Gasket Compatible with Longines L4.209
    Waterproof Crystal Grooved Gasket Compatible with Longines L4.209
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
    per 
  • Waterproof Crystal Grooved Gasket Compatible with Longines L4.191
    Waterproof Crystal Grooved Gasket Compatible with Longines L4.191
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
    per 
  • Waterproof Crystal Gasket Compatible with Longines L8.116
    Waterproof Crystal Gasket Compatible with Longines L8.116
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
    per 
  • Waterproof Crystal Gasket Compatible with Longines L8.115
    Waterproof Crystal Gasket Compatible with Longines L8.115
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
    per 
  • Waterproof Crystal Gasket Compatible with Longines L8.111
    Waterproof Crystal Gasket Compatible with Longines L8.111
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
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  • Waterproof Crystal Gasket Compatible with Longines L4.910
    Waterproof Crystal Gasket Compatible with Longines L4.910
    Regular price
    $10.90
    Sale price
    $10.90
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  • Waterproof Crystal Gasket Compatible with Longines L4.810
    Waterproof Crystal Gasket Compatible with Longines L4.810
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
    per 
  • Waterproof Crystal Gasket Compatible with Longines L4.809
    Waterproof Crystal Gasket Compatible with Longines L4.809
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
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  • Waterproof Crystal Gasket Compatible with Longines L4.795
    Waterproof Crystal Gasket Compatible with Longines L4.795
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
    per 
  • Waterproof Crystal Gasket Compatible with Longines L4.774
    Waterproof Crystal Gasket Compatible with Longines L4.774
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
    per 
  • Waterproof Crystal Gasket Compatible with Longines L4.768
    Waterproof Crystal Gasket Compatible with Longines L4.768
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
    per 
  • Waterproof Crystal Gasket Compatible with Longines L4.767
    Waterproof Crystal Gasket Compatible with Longines L4.767
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
    per 
  • Waterproof Crystal Gasket Compatible with Longines L4.874
    Waterproof Crystal Gasket Compatible with Longines L4.874
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
    per 
  • Waterproof Crystal Gasket Compatible with Longines L4.721
    Waterproof Crystal Gasket Compatible with Longines L4.721
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
    per 
  • Waterproof Crystal Gasket Compatible with Longines L2.128
    Waterproof Crystal Gasket Compatible with Longines L2.128
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
    per 
  • Waterproof Crystal Gasket Compatible with Longines L2.909
    Waterproof Crystal Gasket Compatible with Longines L2.909
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
    per 
  • Waterproof Crystal Gasket Compatible with Longines L2.821
    Waterproof Crystal Gasket Compatible with Longines L2.821
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
    per 
  • Waterproof Crystal Gasket Compatible with Longines L2.803
    Waterproof Crystal Gasket Compatible with Longines L2.803
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
    per 
  • Waterproof Crystal Gasket Compatible with Longines L2.798
    Waterproof Crystal Gasket Compatible with Longines L2.798
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
    per 
  • Waterproof Crystal Gasket Compatible with Longines L2.793
    Waterproof Crystal Gasket Compatible with Longines L2.793
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
    per 
  • Waterproof Crystal Gasket Compatible with Longines L2.786
    Waterproof Crystal Gasket Compatible with Longines L2.786
    Regular price
    $10.90
    Sale price
    $10.90
    Unit price
    per 
  • Waterproof Caseback Gasket Compatible with Longines L4.708
    Waterproof Caseback Gasket Compatible with Longines L4.708
    Regular price
    $15.00
    Sale price
    $15.00
    Unit price
    per 
  • Waterproof Caseback Gasket Compatible with Longines L4.512
    Waterproof Caseback Gasket Compatible with Longines L4.512
    Regular price
    $15.00
    Sale price
    $15.00
    Unit price
    per 
  • Waterproof Caseback Gasket Compatible with Longines L4.709
    Waterproof Caseback Gasket Compatible with Longines L4.709
    Regular price
    $15.00
    Sale price
    $15.00
    Unit price
    per 
  • Waterproof Caseback Gasket Compatible with Longines L4.209
    Waterproof Caseback Gasket Compatible with Longines L4.209
    Regular price
    $15.00
    Sale price
    $15.00
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