watch cleaning machine What to look out for when buying a used watch cleaning machine?
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By watchweasol · Posted
Hello and welcome to the forum. Enjoy. Depending how deep you want to go have a look at the watch fix courses run by our Administrator Mark Lovick. -
By watchweasol · Posted
Hi welcome to the forum, the problem as explained is excess current drain. Usually caused by a dirty movement needing a good service. Th that end I have attached the service sheet to assist . A build up of dirty oil in the jewels or the rotor collecting debris all these things contribute . 3385_ETA 988.333.pdf You will find the current specifications on the sheet, you will need at least a multimeter capable of reading micro amps to check the consumption. -
Firstly I would aim to get the collet centred in the hairspring, then adjust so it sits over the jewel hole. From your pic I'm struggling to tell whether the collet is centred - does it open too quickly at the arrow? If so, a tweak near the pin should fix it. If you need to adjust it, have a look in this lesson from the "Chicago School of Watchmaking" which explains how to adjust collets in hairsprings to get them centred. chicago lesson 19.PDF To get the collet over the hole (assuming the rest of the spring has been sorted), I just grab the collet and pull the whole spring in the direction it needs to go.
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By nevenbekriev · Posted
ОК, The red dot is center of the collet, the green dot is center of the bearing. The white line passes through this dots. The yellow line is bisector of the segment between dots. The pink dot is where the bisector crosses the outer coil. Now, bending in the pink dot will move the collet towards/from the bearing center. You must open (make more straight) the overcoil where the pink dot is in order to make centers coincide.
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