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| Question about the tc quartz movement https://www.breitlingsource.com/phpBB2/viewtopic.php?f=12&t=11043 |
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| Author: | TIMEBANDIT [ Fri Jun 19, 2009 9:10 am ] |
| Post subject: | Question about the tc quartz movement |
hi, i am sure this has been asked before so forgive me , i am a newbie here. Can someone tell me what the actual specs are on the superquartz movement as far as temperature extremes and accuracy, i was told it is 10 sec/year but breitling does not actually say it...is that is that correct? also can i actually expect as many years of battery life as claimed? thanks cheers |
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| Author: | Roffensian [ Fri Jun 19, 2009 9:21 am ] |
| Post subject: | Re: Question about the tc quartz movement |
All breitling Superquartz chronometers are COSC certified. COSC specs state that a watch must be accurate to +/- 0.2 seconds a day at both 8 celsius and 38 celsius and +/- 0.07 seconds a day at 23 celsius. Because quartz accuracy is less predictable than mechanical - i.e. it can vary between gaining and losing the standard is often described as 10 seconds per year, but this isn't strictly accurate. Breitling claim 15 seconds per year if I remember correctly, but again the true accuracy is simply that it is within COSC tolerances. In terms of battery life, it will vary with the use of things like chronograph usage, backlight, etc and of course how long the battery was in a new watch prior to it being sold, but the claims aren't inflated. |
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| Author: | TIMEBANDIT [ Fri Jun 19, 2009 9:31 am ] |
| Post subject: | Re: Question about the tc quartz movement |
Thank you for your answer, if i may make another inquiry... assuming one is wearing this watch in winter, in cold country than this watch would not be accurate? Or do i assume it would not get that cold because it is attached to a wrist? same question in desert conditions where temps would exceed 100f?... |
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| Author: | Roffensian [ Fri Jun 19, 2009 9:41 am ] |
| Post subject: | Re: Question about the tc quartz movement |
Without turning this into a treatise on how thermo compensation works (though I will if needed), quartz movements are expected to be less accurate at extremes of temperature (and it's the temperature of the movement that is key rather than ambient temperature) because the quartz crystal will vibrate faster at higher temperatures and slower at lower temperatures. Remember that COSC specs are for quartz watches - not thermocompensated quartz - thermocompensation is simply a way to meet the specs. In a modern thermocompensated movement there is no practical difference in accurace at different temperatures, just more adjustments being made for temperature. |
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| Author: | mats [ Sun Jul 26, 2009 5:54 am ] |
| Post subject: | Re: Question about the tc quartz movement |
My Emergency with superquartz is gaining 3 sec every month. Is this within the limits, if not, is there any way to get i adjusted? Mats |
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| Author: | Roffensian [ Sun Jul 26, 2009 7:19 am ] |
| Post subject: | Re: Question about the tc quartz movement |
mats wrote: My Emergency with superquartz is gaining 3 sec every month. Is this within the limits, if not, is there any way to get i adjusted? Mats Assuming that you are using it in 'normal' conditions, then no it isn't within specs. However it could simply be an indication that a service is required - how old is the watch? Quartz regulation is more complex than mechanical regulation because of the factors that may cause it, but it can be done - though Breitling may insist on a service. |
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| Author: | mats [ Sun Jul 26, 2009 9:09 am ] |
| Post subject: | Re: Question about the tc quartz movement |
I wear it on a daily basis and its close to a year now. If I have understood it correctly, the first service is free of charge, and since this is something I can live with, I might as well wait until it´s two years old. It´s not indicating low battery either. Mats |
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| Author: | Roffensian [ Sun Jul 26, 2009 2:11 pm ] |
| Post subject: | Re: Question about the tc quartz movement |
mats wrote: I wear it on a daily basis and its close to a year now. If I have understood it correctly, the first service is free of charge, and since this is something I can live with, I might as well wait until it´s two years old. It´s not indicating low battery either. Mats If it's only a year old then I would definitely take it in to be addressed - it's still under warranty. |
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| Author: | mats [ Mon Jul 27, 2009 12:56 am ] |
| Post subject: | Re: Question about the tc quartz movement |
If I take it in now, won´t it be gone for 3 months or so, because the AD´s are not allowed to service the E themselves? I´m not sure if I can live without it for so long... Mats |
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| Author: | Roffensian [ Mon Jul 27, 2009 5:36 am ] |
| Post subject: | Re: Question about the tc quartz movement |
mats wrote: If I take it in now, won´t it be gone for 3 months or so, because the AD´s are not allowed to service the E themselves? I´m not sure if I can live without it for so long... Mats Well there is a problem with it under warranty, so I would get it fixed, but it's up to you. |
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