Break-in period on 2232?

[dannyp]

Been wearing my new OP34 for a week or so on and off (but keeping wound) and so far seems to be running around +5. I understand that there were always suspicions that the silicone hairspring wouldn’t keep time as well as the parachrome but Rolex still applies the 2 second margin to it. I also keep it face up at night and haven’t played with positioning. All that said, I’d there some kind of break-in period I should give it as a matter of course before fiddling with positioning or considering regulation?

I realize few here have a 22xx movement since this isn’t a big OP34/YM37 crowd but thought I’d ask none the less.

[OrangeSport]

Keeping it face up usually speeds it up. Crown up over night usually slows it.

But, 3 of the 4 Rolex we bought new needed to be adjusted to keep time with specs.

[samuel019]

Danny I think it will get better IMO

My new 126610, granted different movement, was out of "range" as well for maybe a month or so. It then started running according to spec. I'd give it a few weeks before any type of service.

I would wear it a few more weeks. Hack the movement. Then set it to whatever method you are using then remeasure the time lost/gained.

Now that I think of it, I dont think I have ever had any new Rolex, as in BNIB, run spot on right out of the gate.

126610, 216570, 126715, 326934, 326935, and a few more. I usually do exactly as stated and get really good results. My 216570 and the SkyD's have went stretches of losing zero seconds for weeks at a time. Just insane.

[HiBoost]

I've seen similar things discussed before and there are always those who suggest they need some break-in time to loosen up or whatever. The thing that's hard to wrap my head around there is, if that is in fact the case, then how did they pass the internal tests prior to shipping? In other words, IF there were a break-in which impacted the watch's regulation/adjustment and IF it actually passed the factory tests, then shouldn't it show up keeping perfect time but then in the coming months drift out of time?

[samuel019]

Originally Posted by HiBoost

I've seen similar things discussed before and there are always those who suggest they need some break-in time to loosen up or whatever. The thing that's hard to wrap my head around there is, if that is in fact the case, then how did they pass the internal tests prior to shipping? In other words, IF there were a break-in which impacted the watch's regulation/adjustment and IF it actually passed the factory tests, then shouldn't it show up keeping perfect time but then in the coming months drift out of time?

Great point. I have also wondered about this but as I have read when its measured at Rolex its uncased I believe and at many different angles etc etc

I'd also imagine that after any movement is measured via COSC that actual movement doesnt go inside a case/watch right away. Could be waaaaay wrong here. Just guessing.

Then lets say when Rolex is putting together/completing any model they choose from a batch of that particular movement that has been sitting. So when started back up there is a adjustment/break in period. Again I dont know. Maybe Bas could chime in here.

[dannyp]

Originally Posted by samuel019

Danny I think it will get better IMO

My new 126610, granted different movement, was out of "range" as well for maybe a month or so. It then started running according to spec. I'd give it a few weeks before any type of service.

I would wear it a few more weeks. Hack the movement. Then set it to whatever method you are using then remeasure the time lost/gained.

Now that I think of it, I dont think I have ever had any new Rolex, as in BNIB, run spot on right out of the gate.

126610, 216570, 126715, 326934, 326935, and a few more. I usually do exactly as stated and get really good results. My 216570 and the SkyD's have went stretches of losing zero seconds for weeks at a time. Just insane.

Don't say that! My new Explorer, with a 3230, runs at +1 and I don't want that to change !

Even at +5, I have no plans to send it in (as long as it doesn't get further out of range), especially as I've not even tried different resting positions. While Rolex may claim +/-2, this is still within COSC spec. And, honestly, as this watch "only" has a 55hr PR, it's more likely to need to be re-wound/set more often than my Explorer anyways.

[dannyp]

Originally Posted by samuel019

Great point. I have also wondered about this but as I have read when its measured at Rolex its uncased I believe and at many different angles etc etc

I'd also imagine that after any movement is measured via COSC that actual movement doesnt go inside a case/watch right away. Could be waaaaay wrong here. Just guessing.

Then lets say when Rolex is putting together/completing any model they choose from a batch of that particular movement that has been sitting. So when started back up there is a adjustment/break in period. Again I dont know. Maybe Bas could chime in here.

There's also the fact that if they try it in a bunch of positions, you essentially get an "average" across all of them. However, that's not the reality, particularly at night, where we tend to consistently leave them in the same position.