Timegrapher Database - Seiko & Citizen Watch Forum – Japanese Watch Reviews, Discussion & Trading
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Old 07-22-2019, 10:24 PM   #1 (permalink)
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Default Timegrapher Database

So here is a question to all you folks who do watch repair/renovations. Is there a Timegrapher database that shows known problems in watches and how these can be detected by a Timegrapher. For example, here is a snapshot of a Bullhead 6138 after I regulated it. It’s recent service history is not exactly known, probably sometime in the last 10 years. I fully wound it but the amplitude is a little low and the time would accuracy wander up and down. When it got below 1/2 power it would get a little noisy and slow some.

So this tells me that the gear train is dragging just a bit and that it might be due to get a service in the near future. But nothing bad is happening overall. Is this right? What other issues can be documented? Is this useful?




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Old 07-22-2019, 11:05 PM   #2 (permalink)
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Couple to look at. Need sleep....
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Old 07-23-2019, 02:18 AM   #3 (permalink)
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We should wipe out the descriptions, keep the diagrams and make up humorous statements for each
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Old 07-23-2019, 08:48 AM   #4 (permalink)
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The Witschi training manual is here
https://www.thewatchsite.com/#/topics/216210
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Old 07-23-2019, 04:17 PM   #5 (permalink)
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Terrific, thanks all.


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Old 07-23-2019, 08:17 PM   #6 (permalink)
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Great stuff guys, much appreciated!
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Old 07-24-2019, 08:51 PM   #7 (permalink)
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Fantastic info here. Much appreciated.
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