Genuine Omega® setting wheel negative set, thickness 1.95 mm, number of teeth 18, dia. 4.50 mm, part number 427, fits Omega® 20 NN flanged spring bar assortments MST Roamer 16 size

MST Roamer 16 size

drilled to fit tapered spindle

Residual test solutions can affect your test results

Jewellery designs can be strongly fastened to the ear clips

fits Omega case number 166

Genuine Omega® setting wheel negative set, thickness 1.95 mm, number of teeth 18, dia. 4.50 mm, part number 427, fits Omega® 20 NN flanged spring bar assortments MST Roamer 16 sizeGenuine Omega setting wheel negative set, thickness 1. 95 mm, number of teeth 18, dia. 4. 50 mm, part number 427, fits Omega 20 NN * Perrin Supply Ltd is independent of and not affiliated with or sponsored by Omega. Omega warranty does not apply to parts supplied by Perrin Supply Ltd.