Omega® Case Back Gasket (Formed / Shaped), fits Omega case number 398.0856

Flat, rectangular formed case back gasket 29.50 mm x 30.50 mm, thickness 0.60 mm, to fit Omega® case number: 3980856

*Perrin Supply Ltd is independent of and not affiliated with or sponsored by Omega®. Omega® warranty does not apply to parts supplied byPerrin Supply Ltd. Using generic parts may devalue your watch.