Rules and Practice for Adjusting Watches

Five position adjusting consists of a further refinement of the condition of the watch. The fact that a very close rate is shown in the first three positions is not an indicatio...

In performance of the various alterations and corrections that have been touched upon in the chapters devoted to position adjusting there are some points that deserve special no...

Experience will eventually prove that most of the variations in positions are caused by apparently insignificant details. The mistake made by the average repairer is generally t...

One particular model may be stamped "Adjusted to Five Positions" and this may indicate that the manufacturer of this model has tested all watches of this grade for twenty-four h...

Theory and practice agree that different models of watches have important relative points of attachment of the spring to collet and stud. In the original springing and adjusting...

In altering the location of screws during the temperature adjustment it is often possible to either mar or improve the appearance of the balance. As a demonstration of this poin...

In the foreign observatories where watches are generally tested for competition prize, or certificate purposes, they are subjected to either three or five day tests in each temp...

Only since the introduction of the compensation balance which received its most substantial early experiments as recently as the year 1859, has it been possible to control the v...

rated for twenty-four hours in each position. It should be wound before being started in each position but should be set only on the first day so that the time is never disturbed.

For this reason and for the convenience of the future some manufacturers have provided from two to four mean time screws in the balances. A complete revolution of these screws e...

Theory teaches us in brief, that the position adjustment is made necessary principally because of frictional errors. It would therefore seem that if the watch was mechanically c...

The method employed in obtaining the high temperature varies in different styles of boxes, while the low temperature is always obtained through the use of ice. When only an occa...

The next point of consideration may be the concentricity of the hairspring, and it is quite important that the spring be centered as nearly perfect as the trained eye can determ...

The first of the vertical positions to be considered is that of Pendant Up and to understand the causes of and corrections for variations in this position completes what is know...

In adjusting watches to temperature it is not always possible nor expected to obtain a perfect rate between the two extremes, manufacturers generally allowing from two to ten se...

The principles covering the adjustment of watches are the same in the repair shop as they are in the factory and they are equally the same in the various lines of high grade wat...

On some occasions when the pinning points seem to be comparatively close and the watch is in good condition with the balance in poise, it is possible to obtain corrections by cl...

In submitting the previous chapters it is assumed that the average ambitious watchmaker will gain enough knowledge from the various details to enable him to understand the meani...

44. Practical Suggestions. 45. The First Point of Consideration in Learning to Adjust. 46. Causes of Variation Between Dial Up and Dial Down. 47. Short Motion Generally Indicate...

66. What Five Position Adjusting Consists of--Detailed Allowances. 67. Example No. 5, Five Positions, Hamilton. 68. Example No. 6, Five Positions, Elgin, B. W. R. 69. Example No...

29. Original Springing of Watches. 30. How Pinning Point Alterations are Made. 31. Even Coil Hairsprings Very Incorrect for Some Watches. 32. How to Find the Correct Collet Pinn...

54. Five Principal Causes and Corrections for Pendant Up Variation. 55. Poor Motion, Cause and Effect. 56. Regulator Pin Practice for Pendant Up Variation. 57. Pendant Up Correc...

1. General Method of Obtaining Results 2. How to Place Screws When the Rate is Either Slow or Fast in Heat Compared to Cold. 3. Composition of and Distortions of Compensation Ba...

16. Example of Maintaining a Pleasing Appearance of the Balance. 17. Correction Varies When Screws are Above or Below Normal Size and Weight 18. Over or Under Compensation. 19....

79. Efficiency of Execution Analyzed (Two Examples) 80. Truing the Balance. 81. Poising the Balance. 82. Truing Hairsprings. 83. Treating a Rusty Hairspring. 84. Stopping by Esc...

10. Observatory System. 11. Commercial System. 12. Rating Card and Method of Calculating Variation 13. Value of the Normal Period Rate. 14. Definition of the Characters Used on...

61. Order of Position Timing and Method of Calculating the Variation. 62. Example No. 1, Three Positions, Columbus. 63. Example No. 2, Three Positions, Ball. 64. Example No. 3,...

40. Routine Varies According to Circumstances. 41. Considering the Watchmaker in the Small Shop of One or Two Workmen. 42. Advantages of Understanding Adjusting Even Though Watc...

37. Altering the Length of Spring by Regulator Pins 38. Method of Examining Vibration of Over Coil Between the Pins. 39. Position Corrections Obtained by Spreading or Closing th...