I-Ring Crystal Gasket, 0.9mm Depth, 0.45mm Width (8.5mm to 19.0mm diameters)

The small part that makes a big difference. This I-Ring crystal gasket creates a secure, watertight seal between your watch crystal and case — essential for any crystal replacement or restoration job. Available in diameters from 8.5mm to 19.0mm to suit a wide range of smaller watch cases.

Specifications

• Type: I-Ring crystal gasket
• Depth: 0.9mm
• Width: 0.45mm
• Diameter range: 8.5mm to 19.0mm (0.5mm increments)

Good to Know

• Select your exact diameter from the variant options above
• Larger diameter ranges available in separate listings (19.5mm–29.0mm and 29.5mm–35.5mm)
• Essential for maintaining water resistance after crystal replacement
• Measure your case crystal seat carefully before ordering

A precise fit is critical — measure twice, order once.