Walking/Hiking BLNR runs fast?

[marzzz]

Normally my 2015 116710BLNR runs slightly fast, and at night I have it on my nightstand on its side, crown up which keeps it very close to actual time. The last several days I have been walking/hiking as much as 12-14 miles/day, and it has gotten ahead as much as 20 seconds in one day. Is this normal behavior? Does it need to go in for service? I am now back to my normal routine, so I will see how it behaves, but I am curious. Thanks all!

[Napoleon]

Not normal, time for service

[Mystro]

Wind the watch all the way up (60 turns). Set the watch and test it again on your walks.

[214270Explorer]

Agree with Gabe. You are definitely experiencing too much in the way of deviation.

[ffscala]

I’ve found that I can make a 3130 movement run very fast through a lot of fast walking. Sent one back to Rolex at one stage thinking it needed fixed but after examining they said it was fine. If your watch keeps good time when not exercising then it may be okay.

[hnn17]

For what it's worth, if you shake a 7s26 calibre hard and fast, it will gain alot of seconds. Maybe the same with the 3186 ?

[Chester01]

First, get a de-magnitizer and try that. Thats the likely culprit here, costs 12-15 bucks, and will save you 6 months of having rolex keep it, maybe longer as who knows how many more shut downs there will be. Some say when the watch is magnetized, it gains several minutes. Thats simply not true in my case. My 16610 was gaining about 10-12 seconds per day, after using the de-magnitizer, back with within 2/3 sec per day.

[Paul7]

Originally Posted by Chester01

First, get a de-magnitizer and try that. Thats the likely culprit here, costs 12-15 bucks, and will save you 6 months of having rolex keep it, maybe longer as who knows how many more shut downs there will be. Some say when the watch is magnetized, it gains several minutes. Thats simply not true in my case. My 16610 was gaining about 10-12 seconds per day, after using the de-magnitizer, back with within 2/3 sec per day.

Good idea, any recommendations for a particular de-magnitizer? I bought a used Exp II running +5 spd and thought I'd try it.

[Chester01]

Originally Posted by Paul7

Good idea, any recommendations for a particular de-magnitizer? I bought a used Exp II running +5 spd and thought I'd try it.

Lol. It was one of those cheap blue rectangle shaped de-magnitzers that they sell on amazon. There seems to be many companies that make them even though they all generally look the same.


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[Skyrider01]

+1 on the demagnetizer. I have had a couple of watches get magnetized before. They went from being off just a few seconds per day to 20-30 seconds per day fast.

[904VT]

Originally Posted by Chester01

First, get a de-magnitizer and try that. Thats the likely culprit here, costs 12-15 bucks, and will save you 6 months of having rolex keep it, maybe longer as who knows how many more shut downs there will be. Some say when the watch is magnetized, it gains several minutes. Thats simply not true in my case. My 16610 was gaining about 10-12 seconds per day, after using the de-magnitizer, back with within 2/3 sec per day.

Originally Posted by Paul7

Good idea, any recommendations for a particular de-magnitizer? I bought a used Exp II running +5 spd and thought I'd try it.

Good idea and worth a look. I'd find it strange for such erratic time keeping just from standard shocks etc from the hike. Wonder if you had any gear or tools near magnetic in nature during the hike. Perhaps rare earth magnet on a backpack etc. that it came in contact with...

[marzzz]

Thanks for the suggestions. I am pretty sure that the BLNR was not near any tools or magnets, closest thing would have been the metal detector at the airport. Now that I am back in my normal routine, the BLNR gained 1 second over the past 36 hours, so I think it may be back to normal. I will keep a closer eye on it over the next several days.

Does Rolex Service really take 6 months!?!? That would be a good enough reason to buy a 114060 right there...!

[Tools]

A mechanical watch will always react to external influences.

If you are swinging your arms in a way that it affects the amplitude (beat) of the balance wheel, it will change the timing.

If that amplitude is fewer degrees of rotation, the watch will beat faster for the time that it is being affected.

[marzzz]

OK just to follow up, my BLNR is now back to keeping excellent time, so it is definitely a factor of spending several hours/day swinging my arms walking briskly. Since I reset it 6 days ago, it has lost 1 second. So now I will lay it flat at night, go figure...

Thanks to everyone for your feedback!

[padi56]

Originally Posted by marzzz

Normally my 2015 116710BLNR runs slightly fast, and at night I have it on my nightstand on its side, crown up which keeps it very close to actual time. The last several days I have been walking/hiking as much as 12-14 miles/day, and it has gotten ahead as much as 20 seconds in one day. Is this normal behavior? Does it need to go in for service? I am now back to my normal routine, so I will see how it behaves, but I am curious. Thanks all!

Originally Posted by Paul7

Good idea, any recommendations for a particular de-magnitizer? I bought a used Exp II running +5 spd and thought I'd try it.

Originally Posted by Tools

A mechanical watch will always react to external influences.

If you are swinging your arms in a way that it affects the amplitude (beat) of the balance wheel, it will change the timing.

If that amplitude is fewer degrees of rotation, the watch will beat faster for the time that it is being affected.

Exactly that Larry afraid today many have no idea how a mechanical works or what effect the movement has with gravity.And all those that claim watch is magnetised complete and utter bosewellocks.

[Benzsiam]

Good to learn something new from TRF.