This is a very interesting old watchmakers tool. It is used to set the hairspring to the balance wheel. Using this gauge, the hairspring is put into the proper position on the balance wheel. Doing this following the markings, will place the watch into the proper beat when the balance is installed into the watch.
No identification is on the tool, but a similar item was made by A.J. Logan of Waltham, Massachusetts or Walthier's at the turn of the century 1900. The height and width of the tool is approximately 1 by 2-1/4, respectively. The black enamel paint is worn and all if any of the original gold gilding is gone. You can still see some specs of gilding at the top under the revolving head. Great tool and collectors item.
Reference: Kellers watch tool catalog of 1900 shows a similar tool (see photo with the number 2590 below the tool). A picture of a flyer showing the tools use is shown.
This is an actual photograph of the tool shown above.
These are the instructions for using the Wathier's Hairspring Stud or Indexing tool.
No identification is on the tool, but a similar item was made by A.J. Logan of Waltham, Massachusetts or Walthier's at the turn of the century 1900. The height and width of the tool is approximately 1 by 2-1/4, respectively. The black enamel paint is worn and all if any of the original gold gilding is gone. You can still see some specs of gilding at the top under the revolving head. Great tool and collectors item.
Reference: Kellers watch tool catalog of 1900 shows a similar tool (see photo with the number 2590 below the tool). A picture of a flyer showing the tools use is shown.
This is an actual photograph of the tool shown above.
These are the instructions for using the Wathier's Hairspring Stud or Indexing tool.
