6138 pillar wheel - Seiko & Citizen Watch Forum – Japanese Watch Reviews, Discussion & Trading
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Old 07-18-2019, 11:05 AM   #1 (permalink)
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Default 6138 pillar wheel

Hello, this is the pillar wheel of a 6138b, why does it have that color and marking on it?
Any help would be greatly appreciated
Thank you
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Old 07-19-2019, 06:22 PM   #2 (permalink)
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I just serviced a 6138 and this pillar wheel does not look normal. It could be wear with brassing showing through on the inner surface or it could just be some old dried up lubricant. The inside surface of the pillar wheels should look bright shiny silver like the rest of the movement. If the watch still functions properly for the chrono engagement and reset, then it may not be an issue other than cosmetic. You should ask the moderators to move this post over to the watchmaking section.
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Last edited by Vette Enthusiast; 07-19-2019 at 06:26 PM.
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Old 07-19-2019, 09:17 PM   #3 (permalink)
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Possibly because it’s bad? I typically see watchmakers use sharpie (marker) to color/mark a part that they need. So they can show their parts supplier without having to remove it beforehand (i know lazy way).


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Old 07-19-2019, 09:21 PM   #4 (permalink)
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Pillar wheel ring missing? Or maybe was in the past?
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Old 07-20-2019, 01:35 AM   #5 (permalink)
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Quote:
Originally Posted by Vette Enthusiast View Post
I just serviced a 6138 and this pillar wheel does not look normal. It could be wear with brassing showing through on the inner surface or it could just be some old dried up lubricant. The inside surface of the pillar wheels should look bright shiny silver like the rest of the movement. If the watch still functions properly for the chrono engagement and reset, then it may not be an issue other than cosmetic. You should ask the moderators to move this post over to the watchmaking section.
Thank you for your reply, yes from what i can see looks like a wore part but more interested in the way has those marks on?
How do i move this post over as u suggested?
Thank you
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Old 07-21-2019, 10:47 AM   #6 (permalink)
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I remember some old N54 posts about this, where the entire column teeth are black- and on unmolested watches. I don't think there's a fixed reason, but it's likely that the pickling, plating and passivation process wasn't completed correctly. https://www.thewatchsite.com/#/topics/230810
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Last edited by 7s26b; 07-21-2019 at 11:15 AM. Reason: info
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