Resonator sensitivity to climate change has been reduced

摘要

The present invention, thermal compensation type mainspring - relates to compensation for the balance-spring of the balance resonator (1), the compensation for the balance spring (1), at least one of the non-metallic material (11a, 11b, 13b, 15b, including 11c, 17c, 19c, 11d, 13d, 15d, 17d, 19d, 11e, 13e, 15e, 17e, 19e, 11f, core (9a which is formed from 21f), 9b, 9c, 9d, 9e, and 9f) . According to the present invention, in order to reduce the sensitivity to climate change of the compensation balance spring (1), a core (9a, 9b, 9c, 9d, 9e, 9f) is overall a layer (7) is a moisture-proof It is coated. present invention relates to the field of clock.FIELD 1