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Discussion Starter #1
when I screw down the case back on my 6309 7040 the rotor will not turn .If I slacken off the caseback I can hear it turn again when shake the watch in winding it up .The gasket is a fresh and supposedly correct one ,it's the same size that I used for an SKX007 and was sold to me as such .The gasket fits well into the groove on the case . The movement appears to be properly seated in the case and the case back is the correct one for the model . .What can possibly be wrong .
BTW the watch runs +3 seconds daily on my wrist .I don't screwdown the caseback very tightly as it seems not allow the rotor to turn .
Any info. greatly appreciated .
 

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Discussion Starter #2 (Edited)
I just discovered the wavy spring is missing .Maybe this is the root of the problem.
I've bought one 2 mins. ago from Dave-e-b on Ebay .
 

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well hello....have u done any recent work to the watch?....maybe the dial is not aligned with the chapter ring?....have u had the watch apart ?....any pics?.....God Bless,John
 

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Discussion Starter #4
Thank you for the dial/chapter ring suggestion John I'll check on that.I did see that in looking directly at the watch there seems to be evident a space of about 1mm between the dial and the chapter ring but I think this is OK .
 

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Should be touching. Check the movement spacer is fully inserted you might need to check the crown is out before pressing it home as the stem can obstruct it slightly if it'd fully screwed down. But that gap sounds like it's the issue.
 

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movement spacer might be rubbing too....some pics would help us too...
 

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Discussion Starter #7
Here we go with some very amateurish photos .
The gap between the dial and chapter ring can be seen .The movement is inserted as far as can be without excessive force .The spacer is also pushed in as far as can be .
As I've said when the case back is tightened to what I normally regard as sufficient it stops the rotor .If I turn back the case back say half a turn it no longer fouls the rotor but my fear is that it compromises the already dubious watertight properties of the case .I don't use this watch in water normally though. P1020907.JPG

P1020910.JPG

P1020914.JPG

P1020917.JPG

P1020918.JPG

P1020919.JPG
 

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It really needs to be flush with the chapter ring. That space is what's missing in the back.
Are all parts for the 6309?
 

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Looks like the movement spacer isn't correct. Does it have a wide gap where the crown notch is? Sometimes people force the wrong size movement spacer from a 6309 dress watch and it doesn't sit correctly.

Looks like it's riding too high and it's actually that is hitting the rotor.
 

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Well the pics really helped....the cutout on the chapter ring is not aligned ....as i look at the watch upside down...there is a small tab on the dial that aligns with the chapter ring....it is right above the crown shown in pic 2...u will need to turn the chapter ring till it shows this cutout to align that tab with it...it is not hard...you can use a wood toothpick to turn it...i would start with that ....it also looks like you are missing the correct other spacer in the back too..the one shown is not correct and will make it bind once it is tightened......from the first pic...i see the dial and hands look aftermarket....so it might have been taking apart and incorrect parts used to make these problems for u....pm me if u need any extra parts...i might have some to help....
 

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Discussion Starter #12 (Edited)
I've now re-seated the movement with the tab in the cut out at 2. Tightened the case back and it continues to foul the rotor
I think my spacer ring looks like the one in my 7548 .Should it be different ?
Here's a photo which will show detail if enlarged .Consensus is that it's an incorrect ring .What should it look like then ?
P1020920.JPG
 

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No that looks like the crown cutout is wide enough I think. And it is the same as a 7548. It's missing the spring but that I don't think should make a huge difference. At least I've seen many missing it and haven't suffered from hitting the rotor.

Try putting the movement in the case without the spacer. When placing the spacer start from the opposite side to the crown cutout and then try and position it carefully to surround the mainplate of the movement, but not sitting proud, parallel with the oscillating weight. It should tuck in easier with the crown/stem out initially.

You need to then make sure you get a spring on eBay if you don't have one already.
 

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Well that might be too small so it hits on the rotor....i had this problem myself and it took a while for me to figure it out...i think u are on the right track...any pics of the movt out dial side up?...
 

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hey that is a great point ...with everything else we have seen...nothing would be a surprise now....
 

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Some quick thoughts on this...........
Do 6309 have two types of movement spacer? One thinner for a dress watch and one thicker for divers. I have seen dress ones widened before for divers.

Do 6309 have slightly thicker dial holding rings to other 6XXX movements. Might have been swapped but I don't think there is much in it.

This is useful...http://forum.tz-uk.com/showthread.php?308320-Seiko-movement-loose-in-case
 

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Discussion Starter #20
I would think if it's stopping the rotor it can only be the caseback that's touching it
I think you're correct Lewie .The caseback is marked 6309 7040 so that's OK. The movement is riding to high in the case or the caseback is pressing down on the rotor owing to the gasket being too thin (probably unlikely ).

Could it be that the rotor is too high in relation to the rest of the movement ?
I am actually pretty sure that one sixth of a turn of the caseback makes the difference between rotor free and rotor stopped .One sixth being the distance between one caseback notch and the next as it is turned clockwise .

Hold on ! I do believe i have another beat up caseback .I'll try that .

OK The first one fits and the rotor is free.The rough caseback
The next one fouls the rotor .Both look identi P1020932.JPG

P1020928.JPG cal to the naked eye and both are marked 6309-040
 
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