Hi, this is an absolute beginner in watchmaking from Germany, nice to meet you!
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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 路 Posted
袨袣, 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. -
I fixed a friend's Omega with a quartz movement. It had had some water ingress and every time she changed the battery it wouldn't last long. There was no obvious damage to the movement but there was some rust on the stem and I could see a water stain on the dial under magnification, The watch basically needed a service - the train of wheels did not run freely but after I disassembled, cleaned and reassembled and put a new battery in it worked fine.
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Sounds like you've either got a short somewhere or excess friction that's draining the battery. Are both insulators still under the battery.
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I have only made screws down to M1 & 14BA & I had trouble getting the slot in the centre of the head so I made a jig to help me be more accurate when cutting the slot, here is my video.
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