It is naturally essential to know when material is correct, how to make it fit in its proper place, and how to make and finish some of the individual parts. It is also commendable to be skilful in all classes of lathe work, as this at times gains prestige for the workman through restoring old model watches to running condition.
It is, however, a disadvantage to develop one's ability in making parts for watches of a bygone age and neglecting the training that happens to be most essential and of daily advantage in repairing modern watches so that they will keep time as consistently after repairs have been made as they did when new.
The object of this book is to present the essential points of watch adjusting in an elementary and non-technical way that will interest the average watchmaker and to enable him to have a convenient source of information, covering the necessary refinements that are fundamental in repairing, regulating and adjusting the better class of watches.
The author trusts that the experienced successful watchmaker will read the book with interest and also with profit and that the novice will be enabled to foresee that there is something more to the art of watchmaking and repairing than that of merely assembling a watch and making it "tick."
It so happens that the author has had many years of experience in both factories and repair shops and that a considerable part of his duties have been devoted to instruction.
He has for a long time felt the need of a book that would, above all else, be practical in its description of the rules that an adjuster follows and which would prove its value in actual experience by being personal as far as permissible in the same sense that detailed shop instruction would be.
Since writing the article entitled "The Watch Adjuster and His Work" several years ago numerous inquiries have been received, for this class of information and the present book is an effort to meet this demand in a manner that can be followed without highly technical or theoretical education.
To promote advancement and interest in everyday practical results is the foremost consideration, and to this end definite means are presented for personal development and for obtaining better results from high grade watches than can possibly be obtained without a fair knowledge of the final details which go so far toward assuring close time.
WALTER J. KLEINLEIN,
July 21, 1920