16600 Running fast

[Raffles]

Hi all, I've noticed that my SD 16600 is running approximately 15 seconds per day fast. What are your thoughts on this? It's a 2007 watch and never been serviced, but not had much wrist time either. So that might be the reason, but I always thought that it would start to run slowly when it would need servicing, not speed up?

[vette boy 52]

Needs service

[Raffles]

Originally Posted by vette boy 52

Needs service

Yes, pretty much get that, just wondering why it would speed up as opposed to slow down.

[padi56]

Originally Posted by Raffles

Hi all, I've noticed that my SD 16600 is running approximately 15 seconds per day fast. What are your thoughts on this? It's a 2007 watch and never been serviced, but not had much wrist time either. So that might be the reason, but I always thought that it would start to run slowly when it would need servicing, not speed up?

Well watch over ten years old so IMHO would need a full service you could try to have it regulated but I would service it then have a full two year warranty.Now many things effect timing such as mainspring power reserve plus many others, but even if its like you say +15 seconds, as long as it consistent thats not a real bad thing. In fact thats good,now if movement was magnetised yes it would speed up, but normally they run very very erratic or even stop and refuse to start. Gravity is the main enemy of any mechanical movement no matter the make or calibre, when resting off wrist dial up or dial down the balance staff runs on the ends of it's pivots very little or no added friction. Thus the balance wheel has a sightly higher amplitude so will make movement run very slightly faster. When watch is off wrist vertical crown up or down or the balance staff pivots runs on the sides of the balance pivot causing a tiny more added friction this slows the amplitude so will run very slightly slower. In wearing through the day these positions hopefully balance out if watch is regulated correctly.A well regulated watch will have an amplitude of between 270 to 300 in different positions on full manual winding test.

[SAlNlDllvllAlNl]

I think you should send it in for service, but if you're reluctant on sending it in, try wearing it consistently for about a month and see what its doing. If it is still way off, then definitely send it in for service.

[Tools]

Originally Posted by Raffles

Hi all, I've noticed that my SD 16600 is running approximately 15 seconds per day fast. What are your thoughts on this? It's a 2007 watch and never been serviced, but not had much wrist time either. So that might be the reason, but I always thought that it would start to run slowly when it would need servicing, not speed up?

In the old days, when fossil oils and greases would dry and get thicker, it was possible that an older watch would run slower simply because it couldn't fight it's way through the sludge.

Modern oils do not turn to sludge, so an older watch will tend to fail to provide enough "power" to the pallet lever. This lever pushes the hairspring around, and if it is not pushing it enough then the hairspring swings more quickly, which equals a faster watch. It's a bit counterintuitive because todays thought process equates everything to an electric motor, which this is not.

[TswaneNguni]

My main wearer 116660 was +1s/day for many years .
Now 10 years old and +3s/day .
16613 blue 2007 also aound +3s/day .

They can become faster with age.

Those two are not at the point of getting serviced.

Just try a demagnatizer to see if it doesn't make a difference .

[Raffles]

Thanks for the replies. Some interesting info there. I've ordered a de-magnetiser to give that a shot first. I am going to try the crown down position in the box for a couple of days, just to see if it makes any difference. Ultimately, I'm thinking of getting it serviced.

[watchmaker]

Originally Posted by Raffles

Thanks for the replies. Some interesting info there. I've ordered a de-magnetiser to give that a shot first. I am going to try the crown down position in the box for a couple of days, just to see if it makes any difference. Ultimately, I'm thinking of getting it serviced.

Whether or not demagnetising it results in better timekeeping, a 13 year old Rolex will benefit from a service.

[Jpccarguy]

Originally Posted by padi56

Well watch over ten years old so IMHO would need a full service you could try to have it regulated but I would service it then have a full two year warranty.Now many things effect timing such as mainspring power reserve plus many others, but even if its like you say +15 seconds, as long as it consistent thats not a real bad thing. In fact thats good,now if movement was magnetised yes it would speed up, but normally they run very very erratic or even stop and refuse to start. Gravity is the main enemy of any mechanical movement no matter the make or calibre, when resting off wrist dial up or dial down the balance staff runs on the ends of it's pivots very little or no added friction. Thus the balance wheel has a sightly higher amplitude so will make movement run very slightly faster. When watch is off wrist vertical crown up or down or the balance staff pivots runs on the sides of the balance pivot causing a tiny more added friction this slows the amplitude so will run very slightly slower. In wearing through the day these positions hopefully balance out if watch is regulated correctly.A well regulated watch will have an amplitude of between 270 to 300 in different positions on full manual winding test.

And THIS is why I love TRF. Thank you, Peter.

[Warregl]

Originally Posted by Tools

In the old days, when fossil oils and greases would dry and get thicker, it was possible that an older watch would run slower simply because it couldn't fight it's way through the sludge.

Modern oils do not turn to sludge, so an older watch will tend to fail to provide enough "power" to the pallet lever. This lever pushes the hairspring around, and if it is not pushing it enough then the hairspring swings more quickly, which equals a faster watch. It's a bit counterintuitive because todays thought process equates everything to an electric motor, which this is not.

It’s bits of information like this that I really appreciate about this forum. Thank you Tools!

[Jpccarguy]

And Larry, too! Thanks to you and everyone at TRF who help make us smarter, and appreciate our amazing timepieces.

[SearChart]

Originally Posted by Tools

In the old days, when fossil oils and greases would dry and get thicker, it was possible that an older watch would run slower simply because it couldn't fight it's way through the sludge.

Modern oils do not turn to sludge, so an older watch will tend to fail to provide enough "power" to the pallet lever. This lever pushes the hairspring around, and if it is not pushing it enough then the hairspring swings more quickly, which equals a faster watch. It's a bit counterintuitive because todays thought process equates everything to an electric motor, which this is not.

I disagree. Modern oils definitely turn to sludge after a decade or so. Especially if there's some metal particles in it.

Take any 10+ year old 3135 (for example), take it apart before the first clean and you'll see.

[Raffles]

Originally Posted by watchmaker

Whether or not demagnetising it results in better timekeeping, a 13 year old Rolex will benefit from a service.

Yes, I think you are correct here. I'll look into getting it done.
Anyone have an idea of servicing cost in UK?

[Andad]

Thus the balance wheel has a sightly higher amplitude so will make movement run very slightly faster.


Would a higher amplitude show as gain or a loss in sec/day Peter?

I thought it would run slower not faster?

[Andad]

Originally Posted by TswaneNguni

My main wearer 116660 was +1s/day for many years .
Now 10 years old and +3s/day .
16613 blue 2007 also aound +3s/day .

They can become faster with age.

Those two are not at the point of getting serviced.

Just try a demagnatizer to see if it doesn't make a difference .

Just like you Neef.

Oom E.

[Gerry62]

regardless of the running fast
service is required

[Raffles]

Booking in for service now. 8 to 12 weeks turnaround.
I'll be lost without it, will feel like I have lost a limb!

[Gerry62]

when he comes back it will be..... a party

[enjoythemusic]

As long as it is consistant it is fine. Thought personally, time for a service as oils and seals get old. When was the last time you had it tested for waterproofness?

[TswaneNguni]

Originally Posted by SearChart

I disagree. Modern oils definitely turn to sludge after a decade or so. Especially if there's some metal particles in it.

Take any 10+ year old 3135 (for example), take it apart before the first clean and you'll see.

Whats the ideal timespan to look at for a service on a Rolex .. 10 years ?

[padi56]

Originally Posted by TswaneNguni

Whats the ideal timespan to look at for a service on a Rolex .. 10 years ?

Common sense and how the watch and what environment the watch was used in.

[SearChart]

Originally Posted by TswaneNguni

Whats the ideal timespan to look at for a service on a Rolex .. 10 years ?

When it starts acting up, a lot don't even reach the 10 year service interval.

[GlossSwiss]

My watch is a 2001 which is 19 years now and never been serviced. It is consistently running +6 seconds a day now. Yes i would like it to run +1 to 2 seconds a day but at the end of the day Ill live. Never been polished and never been opened/serviced so Ill live for now...

[Chewbacca]

Originally Posted by SearChart

I disagree. Modern oils definitely turn to sludge after a decade or so. Especially if there's some metal particles in it.

Take any 10+ year old 3135 (for example), take it apart before the first clean and you'll see.

My thoughts too. It’s not just the oil, it’s the components breaking down in the blender of time.

[TswaneNguni]

Originally Posted by padi56

Common sense and how the watch and what environment the watch was used in.

Originally Posted by SearChart

When it starts acting up, a lot don't even reach the 10 year service interval.

Point is ,say it was running +1 for 8 years and got slightly faster around +3 constantly after the next two years (total 10 years ) ..is it common sense to have it serviced anyway because of age of lubricants or be happy that its still extremely accurate ?

(3135 movement,have two watches thats like that,one is 10 years and the other is 14 years after manufacture )

[SearChart]

Originally Posted by TswaneNguni

Point is ,say it was running +1 for 8 years and got slightly faster around +3 constantly after the next two years (total 10 years ) ..is it common sense to have it serviced anyway because of age of lubricants or be happy that its still extremely accurate ?



(3135 movement,have two watches thats like that,one is 10 years and the other is 14 years after manufacture )

It won't do major harm, but things are definitely wearing out. It is running slightly faster because by now your escapement is bone dry and the amplitude is lower than ideal.

Maybe an extra gear needs replacing if you just let it run, which is included in the service cost..

As long as you don't hear the rotor scraping or banging into the bridges then don't worry.

[TswaneNguni]

Originally Posted by SearChart

It won't do major harm, but things are definitely wearing out. It is running slightly faster because by now your escapement is bone dry and the amplitude is lower than ideal.

Maybe an extra gear needs replacing if you just let it run, which is included in the service cost..

As long as you don't hear the rotor scraping or banging into the bridges then don't worry.

Thanks,I dont hear scraping or banging noises .

[strafer_kid]

Lot of useful info here guys - much appreciated!