This is the original glass gasket / O-ring for various Seiko models. See the list for suitable calibres / models below. Contact us if you're not sure whether this gasket suits your watch. 

This gasket is for the front glass.

This gasket is suitable for among others the following calibres / case numbers: 

4R36, 6N42, 4R37, 4R38, 4R39, 4R71, 7S36, 6R15, 6R21, 6R24, 6R27, 8F56, 6N32, 6R35, 6T63, 

Need an other watch-part for any other Seiko model?

Don't hesitate to contact us, then we'll help as soon as possible!