New Sub losing 5.5 seconds per day...

[azguy]

5.5 seconds How in the heck do you manage the .5

[johneh]

Originally Posted by azguy

5.5 seconds How in the heck do you manage the .5

Pretty easily actually, if the OP did the correct thing and took the average over a series of days. If it gained 55 seconds in 10 days that would be 5.5 seconds per day.

[Anthon]

I still wonder how he measures this time loss. Did the OP try different positions overnight?

[landroverking]

Folks do get confused over this. If a watch loses or gains the same amount every day over a week, it's very very accurate.

[johneh]

Originally Posted by landroverking

Folks do get confused over this. If a watch loses or gains the same amount every day over a week, it's very very accurate.

No, it's consistent. There's a difference.

Imagine you're playing darts and trying to hit a bulls eye every time, but you miss and hit the 20 directly above the bulls eye on every throw. You're not accurate, you're consistently inaccurate. A watch is essentially trying to display the same time in exactly 24 hours as it does right now, if it fails to do this every single day it is not accurate. Keep in mind that it's all relative, to me, having a watch that's -5/+5 isn't a huge deal.

[landroverking]

Originally Posted by johneh

No, it's consistent. There's a difference.

Imagine you're playing darts and trying to hit a bulls eye every time, but you miss and hit the 20 directly above the bulls eye on every throw. You're not accurate, you're consistently inaccurate. A watch is essentially trying to display the same time in exactly 24 hours as it does right now, if it fails to do this every single day it is not accurate. Keep in mind that it's all relative, to me, having a watch that's -5/+5 isn't a huge deal.

Sorry but you are just wrong, because then it can be regulated!

[johneh]

Originally Posted by landroverking

Sorry but you are just wrong, because then it can be regulated!

Sorry, not wrong. If it's consistently losing the same amount of time every day it's not accurate. You seem to be confusing accuracy with precision.

Here's the difference for you: "Accuracy is the proximity of measurement results to the true value; precision, the repeatability, or reproducibility of the measurement"

[hbi]

During the first 6 weeks of wear, my BLNR was about -6 to -10 seconds per day, as measured over several 24 hour periods. I would wind fully and (re)adjust to time.gov every 3 days or so. By about week 7, it had settled into a consistent +2, which is where it's been for the past 4 weeks or so. IMO, give it some time and then decide if you want it addressed.

[landroverking]

Originally Posted by johneh

Sorry, not wrong. If it's consistently losing the same amount of time every day it's not accurate. You seem to be confusing accuracy with precision.

Here's the difference for you: "Accuracy is the proximity of measurement results to the true value; precision, the repeatability, or reproducibility of the measurement"

So are saying it can't be regulated?

[Tseg]

It is too soon to provide a detailed summary of BLNR timing exploits, but where my watch used to be quite accurate I was having issues upon return from a crystal replacement at the RSC with my accuracy being very different from what it once was, not in a good way. Upon calling the RSC they recommended before sending it in that I let the watch unwind over several days and then give it a good 50 rotation manual wind at startup.

Two days does not make a watch accuracy trend but according to my Watch Tracker app taking measurements every few hours my variance has now been +/- .5 seconds and has kept perfect time during the first 48 hours, better than it ever did. When I took it off my wrist to let it unwind it was on pace losing 10 SPD. The week prior it was running +7 SPD. When it was whacking out I manually wound it several times with no apparent benefit but never let it fully unwind since getting it back... I had suffered for 1 1/2 months with erratic timing. Clearly the RSC had seen others experience a similar problem to make such a recommendation. I have my fingers crossed that my issue is resolved.

I also agree with any new watch one should not take (movement repair) action at least a couple months to see how the movement plays out.

[johneh]

Originally Posted by landroverking

So are saying it can't be regulated?

I literally have no idea where you're drawing that conclusion from, nor is that relevant to whether or not the watch is currently accurate (it isn't). I'm sure they would regulate it and that would fix the issue. However, that doesn't change the fact that you're wrong about the watch being accurate when it consistently loses 5.5 seconds per day.

[landroverking]

Originally Posted by johneh

I literally have no idea where you're drawing that conclusion from, nor is that relevant to whether or not the watch is currently accurate (it isn't). I'm sure they would regulate it and that would fix the issue. However, that doesn't change the fact that you're wrong about the watch being accurate when it consistently loses 5.5 seconds per day.

It's a question??????

[johneh]

Originally Posted by landroverking

It's a question??????

I answered it. I still don't know what that has to do with you not understanding the difference between accuracy and precision. Perhaps it's just over your head, which is fine.