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I think the hairspring looks ok. In the static state the coils appear concentric and I am of the opinion that the rather weighty stud explains it,s apparent lack of flatness.. I am wondering if there isn't a problem with where the hair spring is attached to the stud. if it is not formed correctly there, I think it would move the h/s off center, causing you problem. -
Chronometer competition of course, sorry I was writing in haste. https://www.ikigai-watches.com/interview-with-the-watchmaking-father-of-the-modern-mechanical-grand-seiko-mr-akira-ohira/5472 -
I THINK.. those punches are used for setting jewels, but it is really above my pay grade.
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By watchweasol · Posted
Hi Mick find attached three of the tech sheets.... cheers 3877_Seiko 6119C.pdf 3106_Seiko 6119A.pdf 599_Seiko7019A.pdf -
By WatchMaker · Posted
With the movement out of the case I would first check that the stem pieces do actually clip together correctly. This might be easier by removing the female part of the stem from the movement and holding it in a vice whilst you then apply the male part of the stem with crown. Do they clip together as expected? Yes? Now put the female part of the stem back in the movement; check it is properly engaged / secured before proceeding. Now place the movement in the case. Look along the case tube ... is the stem nice and central? Put the case flat on your workbench and try engaging the male part of the stem with crown. You must push evenly along the axis of the stem; do not push at an angle. What happens?
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Just trying to get my head around how this works.
When the jaws (operated by the stop/start button and column wheel) are under the clutch and lifting it up - chronograph disengaged. Is the second wheel still turning part of the clutch?
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