Читать книгу Rules and Practice for Adjusting Watches - Walter J. Kleinlein - Страница 14

When the original temperature adjustment has been carefully executed it is quite permanent and unless the screws have been mutilated or changed in location there will seldom be an occasion for readjusting. The balance may be retrued and repoised many times and the spring may be retrued, altered, or even changed, without seriously interfering with the temperature rating, as long as the screws are not shifted. In changing the spring, however, it is necessary that the same number of coils and the same size of spring be used, as otherwise readjusting would be required.