Herold & Kirkpatrick 42mm Pocket Watch Movement, Vacheron Constantin

  
This is a running Herold & Kirkpatrick 42mm movement. The dial is signed as such.. The movement appears to have a a gold setting on the rear center wheel and also gold balance screws.

The photo loses the "orange" tint on the balance screws. The movement is marked with. Sn 59785 and the plate is stamped "BTL SGDG". None of my references or internet searches provide any further identification.

However, the movement was cleaned in October 1995 by my Father who was a lifelong self-employed Jeweler/watchmaker who cleaned and repaired thousands of watches from 1945 until 2001. His notes on the tin indicate the movement is a Vacheron Constantin. Unfortunately, I can no longer ask him how he came to this conclusion.

Is it possible some identification appears internally and was observed while cleaning? When I opened the tin, I was pleasantly surprised to see the second hand turning.

Apparently, there was still enough spring pressure to set the balance in motion as I handled the case. There is a faint hairline on the dial from center to the "1" position.

I will gladly answer any questions posed, but no longer have the tools to properly disassemble the movement. The item "Herold & Kirkpatrick 42mm Pocket Watch Movement, Vacheron Constantin" is in sale since Sunday, September 9, 2018. This item is in the category "Jewelry & Watches\Watches, Parts & Accessories\Pocket Watches\Antique". The seller is "clockguru" and is located in Winfield, Pennsylvania.

This item can be shipped to United States.