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2 June 2012, 10:08 AM | #1 |
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What is considered as a watch that needs calibrating?
I'm checking my Sub to see if it keeps correct time.
How many seconds off of the official time is too many? How often do you check that? Once a month or what? Thanks. |
2 June 2012, 10:12 AM | #2 |
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I'm happy with 4-5+\- secs a day. COSC is +6/-4.
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2 June 2012, 10:27 AM | #3 |
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I'm happy if my Sub C outperforms a good quartz, though I suppose I can settle for a bit less. :)
The real trick for a newbie is to make sure they're getting an accurate reading, which depends on state of wind, and checking against a reliable time source properly. |
2 June 2012, 10:29 AM | #4 |
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When I depend on accurate time, I check daily and hack to the best source available. Otherwise I verify weekly. But I would not worry if it was off by a few seconds up or down during a 24-hr. stretch.
When you notice things like 30 seconds lost or gained in a day, it's time to try some regulation. It's interesting that some of my different watches have their own habits. A few are within a few seconds even after a week or more. One may gain a minute a week while another lose the same amount.
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Does anyone really know what time it is? |
2 June 2012, 10:31 AM | #5 |
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I'm not worried about much, but I want to know what is normal and what is not.
I have a Z Sub and it's about due for a RSC service based on years but if it's keeping good time I'm fine. Thanks. |
2 June 2012, 10:44 AM | #6 |
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It will keep good time even as the lubricants dry out - but the gaskets replaced during a service is more important with a Sub if you take it deep. Agree 6 years is a good time to begin thinking service - wouldn't go past 10 years with a duty Sub though. Maybe have a pressure test soon? Then you'll know it's OK.
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Does anyone really know what time it is? |
2 June 2012, 10:53 AM | #7 |
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Anything from -4 to +6 is within standard. In order to check your watch it is best to give it 40 winds and set it according to an accurate time source. Check it at the end of 7 days and then check your average.
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2 June 2012, 04:56 PM | #8 | |
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ICom Pro3 All posts are my own opinion and my opinion only. "The clock of life is wound but once, and no man has the power to tell just when the hands will stop. Now is the only time you actually own the time, Place no faith in time, for the clock may soon be still for ever." Good Judgement comes from experience,experience comes from Bad Judgement,.Buy quality, cry once; buy cheap, cry again and again. www.mc0yad.club Second in command CEO and left handed watch winder |
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2 June 2012, 11:41 PM | #9 |
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2 June 2012, 11:59 PM | #10 |
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Ultimately, only you can determine what's acceptable or not. I could live with +15s/d but most could not.
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