Genuine Omega® crown wheel no hub, number of teeth below 31, number of teeth above 30, dia. 7.40 mm, part number 0271B, fits Omega® 12 clock pulleys 20 x 545 (21 1/2")

20 x 545 (21 1/2")

This Hytrel Crystal Gasket Assortment comes with 118 "I" shaped plastic gaskets for use when installing thin mineral or sapphire crystals into watch cases

part number 1818

020-11 cm is specifically for movement 341

Genuine Omega® crown wheel no hub, number of teeth below 31, number of teeth above 30, dia. 7.40 mm, part number 0271B, fits Omega® 12 clock pulleys 20 x 545 (21 1/2")Genuine Omega crown wheel no hub, number of teeth below 31, number of teeth above 30, dia. 7. 40 mm, part number 0271B, fits Omega 12 * 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.