Is my Submariner running too slow?

[OGR4M]

I thought to myself ‘what does the PH watch section need? Another Rolex thread!’

I’ve had my PH staple ceramic Sub for about 18 months or so - and recently I’ve noticed it losing time quicker than before, so I’ve kept track of it for 2 weeks.

In that time it has lost 74 seconds (according to www.time.is ) which, so my calculator says, is 5.28 seconds per day.

Obviously this is well outside of the +/- 2 second COSC rating and even outside the +6/-4 I’ve heard dotted about a few times, so in the opinion of the PH watch experts, does this need sorting?

For reference, the watch has never been dropped or bashed, and I have a fairly manual job so is wound very well as a result, the only possible cause I can think of is that I take the watch off when I sleep.

Now, 5-and-a-bit seconds is hardly a disaster and I’m not going to break down the doors of my AD and demand I get compensation immediately - it’s just a bit irksome (and if I can get it regulated under warranty, it’s better than paying for a service, surely!)

Answers on a postcard, please! (as long as someone doesn’t mention quartz...)

Edited by OGR4M on Friday 24th August 04:57

[Debaser]

I would send it back to get regulated. Like you say, 5s per day is hardly the end of the world but the fact it’s runing well out of spec would piss me off.

[RiggaTheMighty]

You get a 5 year warranty on Rolex, so just take it back to where you got it and get it regulated.
It’s at least 6/7 years away from needing anything else.

[andy tims]

I'm pretty sure COSC standards are -4 / +6 seconds per day average, but that Rolex's own standards are -2 / +2

https://www.ablogtowatch.com/rolex-extends-stringe...

[OGR4M]

andy tims said:

I'm pretty sure COSC standards are -4 / +6 seconds per day average, but that Rolex's own standards are -2 / +2

https://www.ablogtowatch.com/rolex-extends-stringe...

Thanks for the clarifying link - looks like I’ll be waddling into the AD at some point soon. I wonder if I can get that white gold GMT as compensation

[stuttgartmetal]

Lie it flat at night, not on its side.

[OGR4M]

stuttgartmetal said:

Lie it flat at night, not on its side.

It’s always face up, although I have to put it on my wallet or similar otherwise I can hear it ticking when on my bedside table

Solid advice, though, I did recently read that one can effectively ‘self-regulate’ a watch by keeping it in specific positions.

I suppose this means that the watch is catching up some of its time overnight, and is otherwise running even slower without that...