Omega® Case Back Gasket (Formed / Shaped), fits Omega case number 398.0856 Rolex® 1210 The measurements for the tool

The measurements for the tool are 1

pinion diameter 1

Sunburst Pendulum is a medium sized cast brass

Material: Swiss Made Steel

Gem sparkle to 1 gallon of water

Omega® Case Back Gasket (Formed / Shaped), fits Omega case number 398.0856 Rolex® 1210 The measurements for the toolOmega 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.