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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.

118 products
  • Waterproof Crystal Gasket Compatible with Longines Conquest Chronograph L3.678 Series - WR Watches
    $14.90
    $14.90
  • Waterproof Crystal Gasket Compatible with Longines Conquest L3.777 Series
    $14.90
    $14.90
  • Waterproof Crystal Gasket Compatible with Longines HydroConquest L3.689 Series
    $14.90
    $14.90
  • Waterproof Crystal Gasket Compatible with Longines HydroConquest L3.782 Series
    $14.90
    $14.90
  • Waterproof Crystal Gasket Compatible with Longines HydroConquest L3.742 Series
    $14.90
    $14.90
  • Waterproof Crystal Gasket Compatible with Longines PrimaLuna L8.116 Series
    $12.90
    $12.90
  • Waterproof Crystal Gasket Compatible with Longines PrimaLuna L8.115 Series
    $12.90
    $12.90
  • Waterproof Crystal Gasket Compatible with Longines PrimaLuna L8.112 Series
    $12.90
    $12.90
  • Waterproof Crystal Gasket Compatible with Longines PrimaLuna L8.111 Series
    $12.90
    $12.90
  • Waterproof Crystal Gasket Compatible with Longines PrimaLuna L8.110 Series
    $12.90
    $12.90
  • Waterproof Crystal Gasket Compatible with Longines Heritage Chronograph L2.775 Series
    $12.90
    $12.90
  • Waterproof Crystal Gasket Compatible with Longines Lyre L4.760 Series
    $12.90
    $12.90
  • Waterproof Crystal Gasket Compatible with Longines La Grande Classique L4.741 Series
    $12.90
    $12.90
  • Waterproof Crystal Gasket Compatible with Longines Presence L4.805 Series
    $12.90
    $12.90
  • Waterproof Crystal Gasket Compatible with Longines Record L2.820 Series - WR Watches
    $12.90
    $12.90
  • Waterproof Crystal Gasket Compatible with Longines Flagship Classic L4.274 Series
    $12.90
    $12.90
  • Waterproof Crystal Gasket Compatible with Longines Saint Imier L2.766 Series
    $12.90
    $12.90
  • Waterproof Crystal Gasket Compatible with Longines Master Collection L2.919 Series
    $12.90
    $12.90
  • Waterproof Crystal Gasket Compatible with Longines Flagship Classic L4.899 Series
    $12.90
    $12.90
  • Waterproof Crystal Gasket Compatible with Longines Flagship Classic L4.984 Series
    $12.90
    $12.90
  • Waterproof Crystal Gasket Compatible with Longines Flagship Classic L4.974 Series
    $12.90
    $12.90
  • Waterproof Crystal Gasket Compatible with Longines Elegant L4.310 Series - WR Watches
    $12.90
    $12.90
  • Waterproof Crystal Gasket Compatible with Longines La Grande Classique L4.512 Series
    $12.90
    $12.90
  • Waterproof Crystal Gasket Compatible with Longines Presence L4.321 Series
    $12.90
    $12.90
  • Waterproof Crystal Gasket Compatible with Longines Lyre L4.360 Series
    $12.90
    $12.90
  • Waterproof Crystal Gasket Compatible with Longines Presence L4.921 Series
    $12.90
    $12.90
  • Waterproof Crystal Gasket Compatible with Longines Presence L4.821 Series
    $12.90
    $12.90
  • Waterproof Crystal Gasket Compatible with Longines L3.696
    $10.90
    $10.90
  • Waterproof Crystal Gasket Compatible with Longines L3.669
    $10.90
    $10.90
  • Waterproof Crystal Gasket Compatible with Longines L3.666
    $10.90
    $10.90
  • Waterproof Crystal Gasket Compatible with Longines L3.644
    $10.90
    $10.90
  • Waterproof Crystal Gasket Compatible with Longines L3.643
    $10.90
    $10.90