How to get to the movement on this Tissot?
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By nickelsilver · Posted
Here's another old tool that doesn't get used much, but has saved me many hours and headaches when it has been. This is a depthing tool, but quite special. The depth can be set (or measured) very precisely with the micrometer to the right, with a direct reading of the actual center distance between the wheel and pinion. It originally came with a set of the little plates in the slots to the right that take the pivots (first pic), most of mine are missing but they can be made when needed. The section that takes the right hand wheel can be adjusted in height. And it can be set on a profile projector if needed to check things. This one is marked Tripet, but most I have seen are marked Hauser. All of them were made by a small company in La Chaux de Fonds (can't think of the name now). -
This would be the case on a chronograph movement but the Ronda 515 doesn't have an AC contact. Here's an example of a Seiko movement with the AC Reset. -
There seems to be a way to "short" the thing to what they call an AC Reset... Makes a bit of sense, only problem is that i have to firstly re-assemble the movement. -
I am getting 1.55 Volts on all the batteries i purchased -- directly out from the packaging.
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Looking at the parts that's the pressure spring for the setting lever so sounds right.
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