Will Rolex in need of service loose seconds

[Rolexdaydateii]

My day date II is about 3 years old and use to run consistently 1. 5 seconds gain per day. In the last few months something has happened and it's at perfect zero no plus or minus seconds daily, I'm not complaining at all

Only thing I did about a month or two back was put the band in the ultrasound with the watch head above the water. Anyways kinda makes sense to me that as the oils age or possibly dry a Rolex will eventually loose seconds until out of cosc certification slow by too many seconds and needing a service. Am I correct with that assumption? Or does it also sometimes speed up with age and use

[padi56]

Originally Posted by Rolexdaydateii

My day date II is about 3 years old and use to run consistently 1. 5 seconds gain per day. In the last few months something has happened and it's at perfect zero no plus or minus seconds daily, I'm not complaining at all

Only thing I did about a month or two back was put the band in the ultrasound with the watch head above the water. Anyways kinda makes sense to me that as the oils age or possibly dry a Rolex will eventually loose seconds until out of cosc certification slow by too many seconds and needing a service. Am I correct with that assumption? Or does it also sometimes speed up with age and use

Gravity and state of power reserve in the mainspring affects mechanical watches the most thats why they are tested in 5 different positions.And in those different positions there will be slight deviations in the timekeeping so dont worry over a second or so.Remember this the escapement of a mechanical watch in 24 hours pushes the gears 432,000 times,and since a day has 86,400 seconds your watch is showing remarkable accuracy. This is very high precision, given the fact that the movement is 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 mechanical watch made will keep 100% perfect time, very close yes but perfect no.,your watch does not need any service its fine.

[yannis]

I suppose that wear and tear will most certainly affect the performance of a watch. Also they may lead to further wear and tear of other components and this is why we should service at the suggested intervals.

[padi56]

Originally Posted by yannis7777

I suppose that wear and tear will most certainly affect the performance of a watch. Also they may lead to further wear and tear of other components and this is why we should service at the suggested intervals.

The watch in question is 3 years old and as now Rolex recommends up to 5- 10 years service time would doubt if its even run in yet.

[tkerrmd]

its within spec, if it was mine I wouldn't worry about it, if gets worse can always be regulated it doesn't need an overhaul at three years

[Speed]

Originally Posted by Rolexdaydateii

My day date II is about 3 years old and use to run consistently 1. 5 seconds gain per day. In the last few months something has happened and it's at perfect zero no plus or minus seconds daily, I'm not complaining at all

Only thing I did about a month or two back was put the band in the ultrasound with the watch head above the water. Anyways kinda makes sense to me that as the oils age or possibly dry a Rolex will eventually loose seconds until out of cosc certification slow by too many seconds and needing a service. Am I correct with that assumption? Or does it also sometimes speed up with age and use

Is a "loose" second slower than a "tight" second???

[Rebel]

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