Flat Micro Ring by Size

Micro Flat Rings Gaskets - By Size - Cousins & ISO Swiss

• Nitrile (NBR) black rubber
• ISO Swiss ISOCHRON (highest quality rubber)

Rolex Generic Parts & References:Bubble Ø5.50mm

• Crown Gaskets = they do not have them
• Tube = C8366
• Tube Gasket = G63889

Twinlock Ø5.30mm

• Crown Gasket = C8428A (Flat Ring)
• Tube = C8359
• Tube Gasket = C8422 (ISO) or G61102 (O-Ring)

Twinlock Ø6.00mm

• Crown Gasket = C8429 (Flat Ring)
• Tube = C8360
• Tube Gasket = C8424 (ISO) or G61106 (O-Ring)

Daytona Ø7.00mm

• Triplock Crown Gasket = C8361A (O-Ring)
• Twinlock Crown Gasket = G52690 (Flat Ring)
• Tube = C8363 (Short) & C33419 (Orignial)
• Tube Gasket = C8426 or G61105 (internal x2 O-Rings)
• Tube Gasket = C33418 (External, Flat Ring)
• Tube Gasket = C8426A (External, O-Ring, Large Ø)

Dimensions: External Ø x Internal Ø x Thickness/Ø