New Sub losing 5.5 seconds per day...

[oyster1]

Not what you would expect one month after purchase.....been gradually losing more each week and now is approx -5.5s each day which is rather significant and outside COSC parameters. Hopefully will be resolved by regulating, but shame (and disappointing) to have to send it in so soon though!!

[Snow-Dweller]

Try this...

[Sublover2166]

Originally Posted by Clivek

Try this...

Most say this type of regulation is irrelevant with today's new Rolex watches. This paperwork does not even come with a new watch and I don't know how long since it has but has probably been many years.

[Snow-Dweller]

Originally Posted by Sublover2166

Most say this type of regulation is irrelevant with today's new Rolex watches. This paperwork does not even come with a new watch and I don't know how long since it has but has probably been many years.

It works well on my 216570

[oyster1]

Yes, fully wound, worn all day etc. The 'simple regulating' process makes no difference. So, I guess it's going in...

[Tools]

Originally Posted by oyster1

Yes, fully wound, worn all day etc. The 'simple regulating' process makes no difference. So, I guess it's going in...

While it is a nuisance, when you have it regulated it will likely be a second or two on the plus side; I prefer that to one on the minus side.

[padi56]

Originally Posted by oyster1

Yes, fully wound, worn all day etc. The 'simple regulating' process makes no difference. So, I guess it's going in...

Myself would not even think about getting the back off for in the real world less than 2 seconds out of 86400 in a day.Give your watch at least a few months of wearing before even thinking about regulation.

[Anthon]

Originally Posted by Sublover2166

Most say this type of regulation is irrelevant with today's new Rolex watches. This paperwork does not even come with a new watch and I don't know how long since it has but has probably been many years.

My Explorer loses two seconds overnight with the crown up, gains a second with the crown down. On the wrist it gains haf a second during the day. So there is definitely still a variation in time gaining/loosing according to position.

It is also already pointed out that COSC +6/-4 is an average. Not a daily measure. So a question to the OP: how did you measure this 5.5 seconds loss of time?

[Sublover2166]

Originally Posted by oyster1

Not what you would expect one month after purchase.....been gradually losing more each week and now is approx -5.5s each day which is rather significant and outside COSC parameters. Hopefully will be resolved by regulating, but shame (and disappointing) to have to send it in so soon though!!

Have you wound the crown a full 40 turns? And then worn the watch for at least 10 hours every day? If it is fully wound and still loses this much time, yes it has to go in for regulation.

[gould86]

I had the same issue with my brand new 114060. Took it in for a regulation and now it keeps time perfectly.

Something to do with it running fast when fully wound.

[Bfd70]

Isn't the standard +4 -6?

Also, i have noticed there seems to be a few week break in period. My Sub is currently +9 a week. It started at + 15 a week. In advance, no, the 6 seconds doesn't matter to me. I just find it interesting.

[padi56]

Originally Posted by Bfd70

Isn't the standard +4 -6?

Also, i have noticed there seems to be a few week break in period. My Sub is currently +9 a week. It started at + 15 a week. In advance, no, the 6 seconds doesn't matter to me. I just find it interesting.

No the COSC spec is that the movement should perform to a AVERAGE of -4+6 seconds over any 24 hour period.And in the first 10 days of testing the movement could vary up to 10 seconds out of any single 24 hour period and still pass the COSC test.

[anothernewphone]

Originally Posted by padi56

No the COSC spec is that the movement should perform to a AVERAGE of -4+6 seconds over any 24 hour period.And in the first 10 days of testing the movement could vary up to 10 seconds out of any single 24 hour period and still pass the COSC test.

If the watch is consistently running 5.5 seconds slow per day, that IS outside of COSC specs.

[padi56]

Originally Posted by anothernewphone

If the watch is consistently running 5.5 seconds slow per day, that IS outside of COSC specs.

Quite true but the main word is consistency if its consistent then its a extremely accurate watch and all that might be needed is simple regulation.But even after regulation on a machine to lets say +2 seconds over 24 hours.This dont mean it will always perform daily to exactly +2 seconds while on the wrist.Gravity affects mechanical watches the most that's why they are tested in 5 different positions at the COSC.And in those different positions there will be slight tiny deviations in the timekeeping.Remember this the escapement of a mechanical watch in 24 hours pushes the gears 432,000 times and a day has 86,400 seconds.Many things happen to the movement while on the wrist its constantly affected by the earth's gravity, metal expansion and contraction, temperature variations, subtle changes in lubrication and friction, shocks, and so on.The fact is that no purely mechanical watch made at any price will keep perfect time, very close yes but perfect no.Myself would always like a movement running a slight gain than minus, what I am saying never rush out to get the back off just for a second or so, let watch get used to the owners wearing habits first..

[Globule]

As above I recommend a few weeks break in. My wife's DJ was well out of COSC and although it improved over a few weeks, I still had to have it regulated at RSC. Now it is running consistently at +2.

[Racerdj]

You will be glad you had it regulated after it is back on your wrist.

[WS9D]

I would hold off a bit and see if it changes. If after 3 months it's still off, then maybe send it in.

[HogwldFLTR]

Yes, this is true but the testing was done before assembly on the movement alone. I sent a watch back to RSC for running +11. It cost me money for shipping; the question is if -5.5 sec/day is worth the cost of the shipping and absence of the watch. My new watch is running at about +5 and it's not going anywhere.

[watchwatcher]

I wouldn't necessarily be worried about the 5 seconds/day if it was consistently at that spec...I would be more concerned that this number has been growing weekly. What has it been running up to this point?

[oyster1]

It started off at around -3, then -4, then -5, and has 'settled' over the last month now at -5.5. Wouldn't be so bad of it was +5.5 !!!

[watchwatcher]

Originally Posted by oyster1

It started off at around -3, then -4, then -5, and has 'settled' over the last month now at -5.5. Wouldn't be so bad of it was +5.5 !!!

I think I would give it some more time and see how it does the next 2-3 months.

[oyster1]

Thanks for all the feedback. Particularly like the last pun...'give it some more time' 😄 Will see how it is in a couple of months

[blue lion]

Originally Posted by oyster1

Not what you would expect one month after purchase.....been gradually losing more each week and now is approx -5.5s each day which is rather significant and outside COSC parameters. Hopefully will be resolved by regulating, but shame (and disappointing) to have to send it in so soon though!!

It's your watch but this wouldn't bother me at all.

[brandrea]

It wouldn't bother me at all, especially if consistent.

[Cabernet]

Maybe a rookie question, but what are you comparing to when you say you lose or gain a couple seconds in a day?

[The Joker]

It's JUST outside. Would never think about getting it adjusted.

If it was +5.5 would it also bother you? It would be in COSC.

My Speedmaster was a consistent +10 a day over. I know it's not a COSC watch. Never bothered me. 5 years later it's now about +5. Maybe in another 5 years it will be bang on.

Wait for a few months see how you feel then.

[Foxglove]

Do the things the others here recommend - like being sure it's fully wound, etc. If you're wearing it normally it will be. The watch should be running within COSC out of the box. If it bothers you, get it regulated. It's not that hard. Your AD will probably just do it for you for free, if not it's minimal cost and your watch will be easily running within COSC with a quality watchsmith regulating it. I'm not sure in the UK, but in the USA I would recommend Rik Dietel, he's regulated a few of mine (Rolex and not) and all came back well within COSC specs with little positional variation.

[pickerdd]

Originally Posted by oyster1

Not what you would expect one month after purchase.....been gradually losing more each week and now is approx -5.5s each day which is rather significant and outside COSC parameters. Hopefully will be resolved by regulating, but shame (and disappointing) to have to send it in so soon though!!

I had the same issue with my 114060 for the first 5 or 6 months then it settled in to an average of 2 seconds (plus or minus) a day, which is within spec. I was advised by the fine folks on the forum to be patient and that advice has paid off. To put it in perspective, my quartz watches average + .3 seconds a day. I'm fine with that AND I didn't have to ship my watch to the RSC.

Just a thought.

- David

[OrangeSport]

All of ours needed to go in to be regulated when pretty new. Due to pick my latest one up from the service centre in Kent this week. It was gaining 15 secs per day, but all within a short time before settling and doing the same again the next day. Been told one thing they've done is swap to a weaker main spring.

Both our others have been great since been regulated.

[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.