Waterproof Case Back Gasket Compatible with Longines Flagship L4.774

High-quality waterproof case back gasket for Longines Flagship L4.774. Ensures a tight seal to maintain water resistance. Ideal for routine maintenance.

Features:

• Custom fit for Longines Flagship L4.774

• Made from durable, high-grade teflon

• Maintains water resistance and internal protection

• Ideal for servicing or replacing worn gaskets

• Easy installation with basic tools

 

Note: It is recommended to pressure test your watch after gasket replacement to ensure continued water resistance.