Kleinlein, Walter John, 1876- [from old catalog] · [Boston, Hooper printing co.] · leaf 63
Fig. 13 The Adjustment to Isochronism and Positions … Fig. 14 the pendant down position where it will be the leastdetrimental to the performance of the watch. 34. The NaturalPosition Errorand Why itC annot beEliminated. The natural er-ror generally con-sists of fromtwelve to fifteenseconds in finelyconstructedwatches, and ex-ists because of thefact…
Clocks and watches
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