+/-0 Seconds: Rolex Sub C ND Sent In For Regulation

[enjoythemusic]

From new the 2016 Sub C ND always ran about -6.5 seconds per day consistent. Ok, most would be fine with this as it was the all-important consistent, yet i prefer accuracy. So after a few months decided, hey, let's get her re-regulated. Sent the Sub C in via AD Mayors and she came back three weeks ago. Never take the watch off other than the odd lawn mowing/edging... or when trying on other watches

First getting her back, a full winding and setting the time...
Have never had to wind her in the past three weeks and she is +/-0 seconds, with occasionally veering +/- 1/2 a second during the past three week period. As a math / programming geek, yes i know that means after a kajillion 'beats' she is 'correct'. Color me most impressed.

Of course in the end what really matters is that you enjoy your time

[G'ed]

Heh, cool story.

As a mechanical engineer, I'm intrigued what kind of sorcery Rolex had done.

[Ticknaway]

Originally Posted by G'ed

Heh, cool story.

As a mechanical engineer, I'm intrigued what kind of sorcery Rolex had done.

Yes that what's amazing about watches, the mix of mechanical genius and artistic flair!

[Jack T]

That's good, I'm kind of fussy about accuracy too. Just looked down at my Explorer, nice to see its within one second of how I set it two days ago.

[Bluside]

Same experience with my couple month old SubC. It was running consistently 6 sec. slow a day. My AD, Mayors also, said to send it in for regulating. It took 3 weeks and they did a full service on a new watch.

Now, it is unbelievable how accurate it is. In seven days, it lost maybe 2 seconds at the most. I am very happy I sent it in.

[JCZ5]

Similar experience with my ND Sub. Was running approx +8 sec, took it to RSC in NYC.

The attendant came up and said I can't tell you what we regulate your watch to, but you will be happy. It's been running pretty dead on since!


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[DevinH]

I'm also very picky about accuracy. I check mine against the official US time and I check to the second. And mine has literally been -2 spd and that is almost 100% accurate on a almost 34 year old Submariner. Any more than +/-4 spd would drive me NUTS.


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[Racerdj]

Fantastic results! It proves how accurately they can run if taken the time to properly regulate.

[Danny83]

Wow

[WhatTheDeuce]

It is truly amazing that a mechanical device can accurately measure time. That's why I love watches.


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[enjoythemusic]

Originally Posted by WhatTheDeuce

It is truly amazing that a mechanical device can accurately measure time. That's why I love watches.

Exactly! You have varying tension from the power reserve, drive train friction, gravitational changes while wearing, small shocks of the entire mechanism during wear.... and still it is self-winding, fully accurate and highly durable as she is a daily beater.

[2JHead]

Amazing accuracies - must be equivalent to measuring the circumference of the earth with a yard stick and be within an inch

[toys]

Amazing accuracy! thumbs up!

[mtgjr]

Awesome performance! I don't agree with the statement that most here would be fine with -6.5 sec/day. I'd say that most would NOT be fine with that. I know I wouldn't.

[WatchinMD]

Very nice

[peterskinner]

A traitors remark. I have several Rolexes, pretty accurate out if the box. But if you really like true precision you might reflect on the Grand Seiko Spring drive. Yes, quartz regulated but otherwise a high precision mechanical watch. Which is how they seem, to me anyway.
Mine is consistently accurate to about half a second a month, worn, unworn, place at any angle.
Or to put it another way, the escarpment is the weal link in a fine mechanical watch. But you probably knew that. Anyway, to my shame, I do enjoy the spring drive. Put one in my SD4000 and that might be my perfect watch. As I said, a traitor. And no longer a purist. I hsve Quartz too, but that does not feel at all the same.

[enjoythemusic]

Peter, many thanks and yesterday I was in a Seiko factory store.... Yes they look very tempting. :)

[bdex75]

I have to admit I have never checked a single one of my watches for timekeeping accuracy. I rotate about every day and am always winding and setting watches so even the ones on the winder get rotated out and I never check.

Honestly don't even care as long as they are within a few minutes a day.

Complete and total heresy, I know. I apologize in advance.


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[darwin95]

congrats on being dead on.. I'm kinda same kind.. I would prefer accurate Rolexes.

[Dirt]

Originally Posted by peterskinner

A traitors remark. I have several Rolexes, pretty accurate out if the box. But if you really like true precision you might reflect on the Grand Seiko Spring drive. Yes, quartz regulated but otherwise a high precision mechanical watch. Which is how they seem, to me anyway.
Mine is consistently accurate to about half a second a month, worn, unworn, place at any angle.
Or to put it another way, the escarpment is the weal link in a fine mechanical watch. But you probably knew that. Anyway, to my shame, I do enjoy the spring drive. Put one in my SD4000 and that might be my perfect watch. As I said, a traitor. And no longer a purist. I hsve Quartz too, but that does not feel at all the same.

Truly great watches indeed.

Personally I'm just not that overly excited about the styling

[padi56]

Originally Posted by DevinH

I'm also very picky about accuracy. I check mine against the official US time and I check to the second. And mine has literally been -2 spd and that is almost 100% accurate on a almost 34 year old Submariner. Any more than +/-4 spd would drive me NUTS.


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Cannot understand why considering there are 86400 in a day.

[Jfdomega]

Originally Posted by 2JHead

Amazing accuracies - must be equivalent to measuring the circumference of the earth with a yard stick and be within an inch

So long as its an inch fast and not an inch slow!!

[GerardoG]

Wow! Great results!

[eco8gator]

I agree with you. The Spring Drive is an amazing piece of engineering especially if keeping accurate time is important. Though a hybrid I still consider it a mechanical watch...it's like having a little watch maker elf in your watch that continuously regulates the time. Heck it's been qualified for space flight in the Seiko Space Walk watch.

I am personally torn between a GMT pre-ceramic Pepsi or a Grand Seiko SBGE001. I can find the GS for less than a new Tudor Sub...a decent pre-ceramic GMT is thousands more.

Originally Posted by peterskinner

A traitors remark. I have several Rolexes, pretty accurate out if the box. But if you really like true precision you might reflect on the Grand Seiko Spring drive. Yes, quartz regulated but otherwise a high precision mechanical watch. Which is how they seem, to me anyway.
Mine is consistently accurate to about half a second a month, worn, unworn, place at any angle.
Or to put it another way, the escarpment is the weal link in a fine mechanical watch. But you probably knew that. Anyway, to my shame, I do enjoy the spring drive. Put one in my SD4000 and that might be my perfect watch. As I said, a traitor. And no longer a purist. I hsve Quartz too, but that does not feel at all the same.

[strafer_kid]

Originally Posted by bdex75

I have to admit I have never checked a single one of my watches for timekeeping accuracy. I rotate about every day and am always winding and setting watches so even the ones on the winder get rotated out and I never check.

Honestly don't even care as long as they are within a few minutes a day.

Complete and total heresy, I know. I apologize in advance.


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Must agree - all part of the fun of going with Rolex! A few seconds here or there does not bother me............if I ever get to that point, then probably no more Rolex.

[StanGMT]

I bought my 1675 GMT in 1967 and it has been my daily watch ever since. I started off being quite picky about accuracy and for the first five or ten years kept the watch regulated to within +/- 1sec per day. Then, as the years passed by, I sort of found it a bit of a pain keeping it adjusted - and I really didn't need that sort of accuracy - so for the past thirty or more years I've just kept it roughly regulated using the overnight positional method. I let it gain or lose up to 30sec and then adjust it by a minute to compensate - this means that it is never more than 30sec out and that's all I need.

Stan.

[brandrea]

Originally Posted by StanGMT

I bought my 1675 GMT in 1967 and it has been my daily watch ever since. I started off being quite picky about accuracy and for the first five or ten years kept the watch regulated to within +/- 1sec per day. Then, as the years passed by, I sort of found it a bit of a pain keeping it adjusted - and I really didn't need that sort of accuracy - so for the past thirty or more years I've just kept it roughly regulated using the overnight positional method. I let it gain or lose up to 30sec and then adjust it by a minute to compensate - this means that it is never more than 30sec out and that's all I need.

Stan.

[Dirt]

Originally Posted by StanGMT

I bought my 1675 GMT in 1967 and it has been my daily watch ever since. I started off being quite picky about accuracy and for the first five or ten years kept the watch regulated to within +/- 1sec per day. Then, as the years passed by, I sort of found it a bit of a pain keeping it adjusted - and I really didn't need that sort of accuracy - so for the past thirty or more years I've just kept it roughly regulated using the overnight positional method. I let it gain or lose up to 30sec and then adjust it by a minute to compensate - this means that it is never more than 30sec out and that's all I need.

Stan.

Very practical

[dysondiver]

five mins a month , or at least the months i change the date does me ,,,, but they are a thing of wonder

[The Libertine]

Originally Posted by bdex75

I have to admit I have never checked a single one of my watches for timekeeping accuracy. I rotate about every day and am always winding and setting watches so even the ones on the winder get rotated out and I never check.

Honestly don't even care as long as they are within a few minutes a day.

Complete and total heresy, I know. I apologize in advance.


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Me too.

In my opinion, the less a watch is opened the better, so unless accuracy is completely out of whack, I'm okay with a handful of seconds either way.....