Miyota 9015 very noisy

[EbolaVirus]

I received my shiny new PP Nautilus from Trustytime. It looks brilliant. Thanks Andrew!

Will swap with more correct hands this weekend.

I've never owned a Miyota before. Are they supposed to be this noisy?

Is there anything I can do to make it quieter?

I've oiled the rotor bearings.

I unscrewed the case back 1/6th of a turn. It's not touching the glass anymore.

Unrelated, but I also dunked the bracelet in oil to get rid of the extra link rattles.

I'm almost prepared to limit the rotor with thick machine oil and manually wind... But not quite yet.

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[EbolaVirus]

Nobody has any idea how I can shut this thing up?

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[Rolexman]

Could be due to a poor case back gasket and or poor back glass fitting. Compare it to a door with a chainsaw behind it. Leave the door open a crack and you will hear it very loud. Close the door and you will hear it less. Use draft rubbers and hear it even less....is the door solid wood or thin metal or metal with thin glass windows? All effect the sound penetrating. Same as your case back.

[marinamm20]

when I have noisy rotors, I taken them off and give them a trip into the ultrasonic bath - this normally shuts them up.

[EbolaVirus]

Thanks for the ideas.

It's sealed and pressure tested by Andrew, so I don't think that's the issue.

I'll try an ultrasonic bath and post the results here.

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[Rolexman]

You are missing the point. But good luck

[GenTLe]

I have a 9015 in a Zeppelin watch. Yes, quite noisy. Similar to 21j.

[mead]

Interestingly, my friend has a gen PP 5711 and his rotor makes a whirring noise just as loud as the Miyota 9015 in my rep 5711. This a known characteristic of the gen PP movement.

So, the noisy 9015 rotor makes it more gen-like. The difference in sound is that the gen has a more refined buzzing while the Miyota has a more "crunchy" buzzing.

So, I love this watch except for the hands. The dial is so good compared to the other rep 5711.

OP, where are you sourcing hands?

[GenTLe]

Hands for the cheap version should fit:
21j=clone of Miyota 8215.
8215 has hands= 17/100/152
Miyota 9015 has hands= 17/100/152

 

Font: http://www.ofrei.com/page1119.html (search for DG2813), http://www.citizen.co.jp/miyota_mvt/download/index.html#8205 and http://www.citizen.co.jp/miyota_mvt/download/index.html#9015  (2nd PDF from the left)

Edited November 6, 2014 by GenTLe

[EbolaVirus]

Yeah. The crunchy sound is bad. Not very refined at all.

I suspect it's the rotor bearings.

Is it possible to change the rotor bearings? =\

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