DJ36 losing time on PR test

[Schwuppes]

Hi guys,

So I finally registered and immediately have a question... jeez
Thanks for providing this awesome source of information and the community spirit! :)

So here's the deal,

I put my newly acquired DJ36 on a PR test roughly 39 hours ago.
I wasn't going to do a super accurate test because i just wanted to know if my watch can do the pallpark, say... 43 to 48 hours.
So just now I check it... was still running... but it had lost a full minute of time. I set it pretty close to the time dot gov (I can't post links yet lol) site. Last time I check maybe 12 hours a go it was still on time give a second or so.

So is this a big problem that needs to be investigated by Rolex? The watch is still under warranty obviously.

From what I have read as the PR runs dow a watch should gain time not fall behind.

Your thoughts and suggestions?


Cheers from Perth, Western Australia!

[Ichiran]

Edited.

[Schwuppes]

Thanks mate,

I believe the watch is fine when I wear it every day. I haven't noticed that it lost time until I did this PR test.
So I'm assuming it only happens when the watch is not moving (I have it laying dial uip btw) and perhaps when the PR is getting low. Which is strange because I read that low PR can cause a automatic watch to speed up... not slow down.

[Tools]

Originally Posted by Schwuppes

.

So is this a big problem that needs to be investigated by Rolex? The watch is still under warranty obviously.

. . .

It's not a problem at all. You are doing a power reserve test and yur watch is running from fully wound, down to no wind. Every watch has a power curve that will run it at different rates throughout that curve.

Don't try to read any accuracy issues into this sort of exercise

[Schwuppes]

Originally Posted by Tools

It's not a problem at all. You are doing a power reserve test and yur watch is running from fully wound, down to no wind. Every watch has a power curve that will run it at different rates throughout that curve.

Don't try to read any accuracy issues into this sort of exercise

Thanks mate,

So the COSC specs do not apply in this case?

No offense but I will need to check up on that. Just putting your watch down shouldn't mean that its out by a minute when you come back... even if its a day and a half later.


EDIT: OK looked up that the COSC specs are within a 24h period... fair enough so my watch passes that. But I'll still do the test again and check it more often.

[SearChart]

Accuracy is measured at 0hr and 24hr. Beyond that any watch will become inaccurate.