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Posted

Hi all. Just an amateur here.

So I have gotten a Seiko 5M43-0B70 Grey Ghost. And it's the early models with the AGS inscription on the beautiful and stunning dial.

The kinetic movement is really annoying. Really weak.

basically IT DOESN'T WORK.

So i would like to swap the movement out for a seiko automatic 7S36 movement. The diameter is the same. The height is 0.6 mm thicker than the kinetic.

 

The problem i want to solve is that how do i seal off the power reserve button permanently. (Without removing the crown) So the watch stays water-resistant, and if i press the button accidentally, it won't get pressed in the case. It will be solid (as in the seal won't break , and the button won't get depressed into the case) i just want a permanent and really really solid seal. Please help me out. Really appreciate it.

 

Sent from my SM-G8870 using Tapatalk

 

Sent from my SM-G8870 using Tapatalk

 

 

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Posted

Is kinetic movement not servicable? 

How do you know the capacitor is Ok? 

 Curious since I have got one too which I hardley wear.

 

 

 

Posted

Kinetic movements are serviceable but they're really annoying. Need to constantly keep check on capacitors and battery ( that's because my movement is really the early stage of kinetic movement , this movement really doesn't hold charge for long and the capacitors are weak) Also charging the kinetic movement is a real workout. Takes a long time swinging your arm to charge it a little bit.

 

Anyways. Please help out on the first issue. Thx a lot.

Sent from my SM-G8870 using Tapatalk

 

 

 

 

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    • Good stuff, thanks!!!  I'm going to save it and re-read your post and watch the video again.  I have a few follow-up question:  My understanding is that the spring vibrates or breathes between the the two regulator pins. When the pins are fully open the effective spring length is from the stud and theoretically no rate adjustment can be made by moving the regulator arm. As the pins are closed the spring gets closer to one side of the regulator block but doesn't touch a pin. You can still move the regulator carrier the entire terminal curve without upsetting the coils.  The rate can now be adjusted using the regulator because the effective spring length can be modified.  My question is: Does the hairspring bounce off and touch one of the pins as it breathes? Is that why the effective hairspring length is adjusted by moving the regulator?  And follow-up: How is amplitude affected by the spring between the pins? Does fully open pins, dial up position = max amplitude?  When spring adjusted to 1/2 width still = max amplitude? When I have crown down gravity is pulling the spring against one of the pins and I would expect rate to go up and amplitude to go down. Is that correct?
    • A quick Google for Longines 25.17 found several similar watches - like this one with writing on the case back similar to yours https://benjaminmarcello.nl/product/longines-cal-25-17-tank-from-1938/
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    • Then, can I replace it by purchasing a regular ruby with the same or similar width and height and pivot groove size from eBay? If I replace it like the above and operate the movement, will there be no problem?
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