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Discussion Starter · #1 ·
Hi guys

I have a king seiko quartz 0852 8000 that is lagging about 2mins/day. May I know which screw should i turn to make it go faster?
Picture of movement attached below:

IMG_20180614_103745.jpg

Thanks
 

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At two minutes per day, I am not sure the trimmer condenser is going to be of much use.
 

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Unless the battery is on its way out or someone in the past went crazy fiddling with the trimmer condenser, then yes, I would suspect that the IC is faulty.

Still, if you want to give it a go, I think the trimmer condenser is here :
Screenshot_20180716-172407.jpg
 

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Discussion Starter · #8 ·
I gave the screw a few 1 deg turns clockwise but the time is still lagging. Then I saw that the movement of the second hand was irregular. Sometimes it ticks at 1 sec, sometimes at about 1.5-2 sec. Does this confirm that the IC is faulty?
 

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I gave the screw a few 1 deg turns clockwise but the time is still lagging. Then I saw that the movement of the second hand was irregular. Sometimes it ticks at 1 sec, sometimes at about 1.5-2 sec. Does this confirm that the IC is faulty?
I would think so.



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