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Eta 2893-2 Stem Refuses To Come Out

schtozo

By schtozo
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schtozo Member

schtozo

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Hi guys, i recently had an issue with a 2824 which was corrected thx to the knowledge on this forum, however im having another issue now but with a 2893-2. Stem refuses to be pulled out of the movement. I tried from winding position and from hand setting position to no avail... Where should i start?

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schtozo Member

schtozo

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I bought the watch second hand, its a steinhart ocean 1 gmt vintage.. 39mm version. I dont know about the background of the watch and cant confirm the stem being its original. However since day one, crown felt kinda funny sometimes such as it keeps pushing itself out of the calendar setting adjustment position to the winding position while i try to fix the date.. I have to maintain certain pull force to keep it in calendar position. Hand setting position works ok though. Winding position feels kinda blank. I dont feel it winds correctly. However movement is very accurate at around +4-5 secs a day. I hope this helps

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SSTEEL Distinguished Member

SSTEEL

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I have come across some problematic stems which were tight to remove, after applying a little more force on extortion, I later found that the stem on some was pitted, and showed signs of water ingress, this could be the cause you are experiencing too.

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      By ColinC · Posted

      Thanks for the input - but I don't think this is the case either. I have inspected the spring and it looked fine with the bridle locked against the ridge on the barrel wall.  And as I said, I did manage to put a full wind on it using my tweezers without any slipping. @JohnR725 You might be right about pushing down when I use the tweezers! And yes I am aware that this is a cheap movement! I have just taken the watch back out of the case and removed the dial to see if I can see better. Strangely I was able to wind it  a few times without slipping when it was out of the case .  But when I try to release the power on the mainspring by holding back the click and slowly letting the crown turn, it slips. 
    • JohnR725
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      By JohnR725 · Posted

      I was afraid of something like this and yes the pictures helpful for those that have never seen one of these. The problem with a watch like this made at a bargain price and they do things a little bit differently.   Nitpicky clarification required? When winding with the crown versus pushing with the tweezers visually is it exactly the same? Then when you whining with your tweezers are you pushing down at all? It's possible the mainspring is slipping on the other side farther into the watch. As I said these are made differently cheaper than a standard watch and we probably need a better image of the mainspring barrel itself. Like for instance you notice the upper pivot well if you do you're seeing things as there is no upper pivot. So another words is a strap holding the barrel in place and it's definitely made differently than the standard watch. Which means conceivably it slipping on the other side as things have worn out and you may not be a loose see that on the other side. One of the annoying problems with technical information that you download is conveniently when it was scanned the technical was not because they just wanted the parts lists. So we can see that the mainspring barrel in this case doesn't have an arbor. In other words it goes together a little bit differently than a standard watch and it's possible that it still has defect and is slipping somewhere in here. Then he is a website that shows a few pictures but not how the barrel goes together or the barrel itself which is unfortunate. https://17jewels.info/movements/e/eb/eb-8800/   EB_EB 8800etc.pdf
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