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Posted

Hi,

I'm more of a clock man tbf and I've been on the Clock Forum for a while now. However, I have a Jean Pierre Half Hunter fob watch which was a gift for my 50th birthday. It's only a quartz one and not of the finest quality but it has sentimental value so I'm keen to see if I can repair it. 

The unit just stopped one day. It's not the battery or the battery connections. The hands move freely and the stem moves in and out as you would expect. I can see no corrosion or any obvious reason for failure. The movement appears to be a standard quartz type - sorry, I didn't get any pictures but I can do - I would assume these are not that repairable but is it possible to get a replacement mechanism? or is there a common fault on these?

 

the picture isn't mine but it shows the style of watch I have. Any thoughts will be much appreciated.

51QvwCtxIrL._SR600,315_PIWhiteStrip,BottomLeft,0,35_SCLZZZZZZZ_FMpng_BG255,255,255.png

Posted
3 hours ago, RogerH said:

The movement appears to be a standard quartz type

Not really standard because the moon phases disc is concentric to the hands, which is not common. For example, it is not a Miyota commonly used on this class of watches.

Quote

- sorry, I didn't get any pictures but I can do

You really should, as with most other repair questions.

Posted
7 minutes ago, RogerH said:

 is there a good source for this sort of thing?

Have a look to our pinned topic:

 

Posted

Haha, I use Cousins for clock parts all the time and didn't think about them at all! But, with the Ronda tip I've narrowed it down to the 708 movement which has the date and moon phase in the correct positions....and only £11. I'll double check measurements tonight but hopefully this will solve the problem. Thanks for your help.

Posted

So, just to finish this off, it was the 708 and a top tip for identifying it is in the pic below, you have to look closely but it will show you the type number.

InkedFob Watch (5) ident.jpg

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Posted
1 hour ago, RogerH said:

So, just to finish this off, it was the 708 and a top tip for identifying it is in the pic below, you have to look closely but it will show you the type number.

Very good. Something you can try before (or after) buying it new is to give it a starting impulse with a demagnetizer costing few pounds. The same blue box will then be useful with mechanical watches and tools. 

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    • Yes, the specific old tools do exist, but may be having one is not needed as they are not cheap, and also You will be able to do without it well enough. My advice will be to use regular depthing tool and adjust it for the exact distance between pallet fork and escape wheel bearings from the watch. Then remove the shellac from the pallet that now doesn't pass the ew teeth and move this pallet in. Then put the pallet fork and ew on the depthing tool and check how they lock. They should not lock when the pallet is in, but You will little by little move the pallet out and locking will appear. Then move just an idea out for reliable work and apply shellac, then check if things are still the same. You have to observe where the teeth fall on the pallets - it must be just a little below the edge between impulse and rest planes. Then You must check how everything behaves in the movement This Potence tool is so ingenious, but actually, the traditional way to do the things is much more simple. Arrange the parts not on the pillar plate, but on the cover plate. Only the central wheel will remain on the pillar plate, secured by the cannon pinion.
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    • Thanks for this post MikePilk, I just came across a similar problem with an Omega 1022.  The problem I had was the seconds pinion spring was bent out of shape and did not even engage with the wheel properly, so the seconds hand was not moving at all. (no power loss though :) I removed the automatic module so I could access the spring and work on it. Once I bent it back close to the right shape, I experienced the same problem you reported about power loss.  Many tweaks later, and the seconds hand is moving properly again, with amplitude back to good numbers again. Cheers
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