Runs Fast

[frepperson]

I have noticed when I wear my Explorer 2 on a run, it can be off by as many as 20 seconds later the same day. Without a run, if can vary less than a few seconds a week!

Thoughts?

[Kanger]

Stop running

[Mockingbird]

Originally Posted by kanger

Stop running

I personally don't run with mine, but I've heard that most sports models can take it...

[Watch Professor]

Originally Posted by kanger

Stop running

Or run slower.

[2th Dr]

Originally Posted by kanger

Stop running

Your watch is just trying to keep up with you, but it seems like it's running faster than you!

[Rikki]

Ditto

[TimeToGo]

What sneakers are you using?!

[Yazo]

Originally Posted by TimeToGo

What sneakers are you using?!

Lol.... "must be the shoes" - Spike Lee

[paverman]

Time warp??

[hennabav]

That's interesting...running shouldn't make a Rolex slower or faster.

[walds11]

That's what I thought

Originally Posted by hennabav

That's interesting...running shouldn't make a Rolex slower or faster.

[padi56]

Originally Posted by frepperson

I have noticed when I wear my Explorer 2 on a run, it can be off by as many as 20 seconds later the same day. Without a run, if can vary less than a few seconds a week!

Thoughts?

My advice to you would be to stop worrying about tiny variations in accuracy in a mechanical watch.Just wear and enjoy it in good health, if its off by a few seconds, just hack the movement to correct it, if its that important to be spot on.!

[zillap]

Just run, lets have fun:)

[Erix]

I have no variation whatsoever when I run with my sub.

[frepperson]

Padi56:

I am not worried about "being spot on," as it were. I am more interested in why the variation would result from increased activity. The rotor should wind the watch, yes, but the transfer to power the movement should be the same and constant.

I think it curious.

I am not looking for advice as much as a possible explanation.

Thx.

[padi56]

Originally Posted by frepperson

Padi56:

I am not worried about "being spot on," as it were. I am more interested in why the variation would result from increased activity. The rotor should wind the watch, yes, but the transfer to power the movement should be the same and constant.

I think it curious.

I am not looking for advice as much as a possible explanation.

Thx.

Well first how do you know it can be off by as many as 20 seconds later the same day.?Did you set your watch by a reliable time source before you set of for your run.Then check your watch by same time source after your run,and how long do you run for.Once a watch is fully wound the timing should be about the same.But gravity is a mechanical watches worst enemy and in different positions the timing differs slightly, same for variations in temperature.But would doubt by as much as twenty seconds, perhaps a couple of seconds either way, as for any other explanation cannot give one.

[Tools]

Originally Posted by frepperson

Padi56:

I am not worried about "being spot on," as it were. I am more interested in why the variation would result from increased activity. The rotor should wind the watch, yes, but the transfer to power the movement should be the same and constant.

I think it curious.

I am not looking for advice as much as a possible explanation.

Thx.

No.............. that's not exactly how it works.. Yes, you do wind the watch and the mainspring puts torque on the drivetrain at a constant.. (this is why they have 48 hours of power reserve..to remain constant and not so you can take it off for the weekend - but that's a different lesson)

However, the timer or regulator is the hairspring balance and escapement........ it oscillates on it's axis at about 300 degrees back and forth (amplitude). If this remains constant, then your tick-tock remains constant..

However, running and swinging your arms, or any other activity, puts an opposite or additional force to the oscillating hairspring (this is simple physics).... Your arm movements will keep the hairspring from fully swinging the complete 300 degrees............ it may shorten the swing to as little as 230 degrees.... this shorter swing happens faster...faster oscillations = faster tick-tock = faster watch..

A worn watch will almost always run slightly faster than a watch that is not worn at all because of your wrists (movements) affect on the amplitude of the hairspring.....

[2th Dr]

Originally Posted by Tools

No.............. that's not exactly how it works.. Yes, you do wind the watch and the mainspring puts torque on the drivetrain at a constant.. (this is why they have 48 hours of power reserve..to remain constant and not so you can take it off for the weekend - but that's a different lesson)

However, the timer or regulator is the hairspring balance and escapement........ it oscillates on it's axis at about 300 degrees back and forth (amplitude). If this remains constant, then your tick-tock remains constant..

However, running and swinging your arms, or any other activity, puts an opposite or additional force to the oscillating hairspring (this is simple physics).... Your arm movements will keep the hairspring from fully swinging the complete 300 degrees............ it may shorten the swing to as little as 230 degrees.... this shorter swing happens faster...faster oscillations = faster tick-tock = faster watch..

A worn watch will almost always run slightly faster than a watch that is not worn at all because of your wrists (movements) affect on the amplitude of the hairspring.....

Excellent explanation Larry! Thanks!

[Huskerjss]

Originally Posted by Tools

No.............. that's not exactly how it works.. Yes, you do wind the watch and the mainspring puts torque on the drivetrain at a constant.. (this is why they have 48 hours of power reserve..to remain constant and not so you can take it off for the weekend - but that's a different lesson)

However, the timer or regulator is the hairspring balance and escapement........ it oscillates on it's axis at about 300 degrees back and forth (amplitude). If this remains constant, then your tick-tock remains constant..

However, running and swinging your arms, or any other activity, puts an opposite or additional force to the oscillating hairspring (this is simple physics).... Your arm movements will keep the hairspring from fully swinging the complete 300 degrees............ it may shorten the swing to as little as 230 degrees.... this shorter swing happens faster...faster oscillations = faster tick-tock = faster watch..

A worn watch will almost always run slightly faster than a watch that is not worn at all because of your wrists (movements) affect on the amplitude of the hairspring.....

WOW, I love the knowledge that I get on this site!

[mike]

Interesting. I've run with a Rolex on for many years and never noticed a problem.

Actually I can say the same for Panerai and Omega.

[frepperson]

Larry:
Thx for the explanation. Would you guess that a 40 minute run would lead to a watch being 20-30 secs fast? I have an Oceanus atomic watch that I set my watches by. It updates once a day around midnight. I just happened to notice the Explorer was right on that morning and wasn't that night...

[Tools]

Originally Posted by frepperson

Larry:
Thx for the explanation. Would you guess that a 40 minute run would lead to a watch being 20-30 secs fast? I have an Oceanus atomic watch that I set my watches by. It updates once a day around midnight. I just happened to notice the Explorer was right on that morning and wasn't that night...

That seems excessive to me... but I don't know all the variables involved...

[Mystro]

No, 40 seconds is not a small amount of time and it is not normal. A watch gaining 1-2 seconds from high activity is a acceptable amount of time but 40 seconds not. This is not a acceptable accuracy.

FYI: none of my watches have ever gained more than a second of a full day of activities. ie ( golf, tennis,flyfishing)

Originally Posted by frepperson

Larry:
Thx for the explanation. Would you guess that a 40 minute run would lead to a watch being 20-30 secs fast? I have an Oceanus atomic watch that I set my watches by. It updates once a day around midnight. I just happened to notice the Explorer was right on that morning and wasn't that night...

[Rigsby1]

Thank you Larry it was just what I was going to say Also I find after a hard day at work I'm too tired to run even walk some days

[frepperson]

Larry:
I really appreciate you insight and expertise!

Cheers