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regulator to the S or F

F

frank

Guest
I have a Robt,h,Ingersoll and bros,7 jewel that runs about 10 min per 24 hours slow. Now do I move the regulator to the S or F to make it go faster?
Thank you
 

Timebuilder

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Oct 19, 2003
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To speed it up, move to the "F" position. However, with that much of an error, the problem can't be corrected with a regulator adjustment.

The watch probably needs cleaning and a new mainspring. When these things are taken care of then you can start to time the watch out.

Regulators on watches are for very minor adjustments to meet the wearing patterns of users.
 

lak611

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Mar 28, 2008
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Timebuilder said:
To speed it up, move to the "F" position. However, with that much of an error, the problem can't be corrected with a regulator adjustment.

The watch probably needs cleaning and a new mainspring. When these things are taken care of then you can start to time the watch out.

Regulators on watches are for very minor adjustments to meet the wearing patterns of users.
If a watch is losing about a minute a day, can the regulator be moved to adjust it? How far should it be moved?

Laura
 

Kate N

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Jun 13, 2005
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Yes, you can compensate for a daily 1 minute loss by adjusting the regulator. How far to move it will be trial and error.
Be extremely careful, as the balance and hairspring are quite easily damaged if a tool slips.
Using a toothpick to move the regulator is advisable, as it won't scratch.

Kate
 

lak611

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Mar 28, 2008
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Kate said:
Yes, you can compensate for a daily 1 minute loss by adjusting the regulator. How far to move it will be trial and error.
Be extremely careful, as the balance and hairspring are quite easily damaged if a tool slips.
Using a toothpick to move the regulator is advisable, as it won't scratch.

Kate
Thanks, Kate! :)
 

Don Dahlberg

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Aug 31, 2000
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Do not ignore the advise about cleaning. If a vintage watch (not waterproof) has not been cleaned in the last three years, it is time. If it is a waterproof (and thus dustproof) watch, then this time can be extended to 5 to 7 years.

If a watch was keeping good time and then requires a large change in the regulator, it usually means a problem in the watch. Adjusting the regulator is like turning up the idle speed of your car to stop it from stalling. You are treating a symptom and ignoring a problem. Running a dirty watch will eventually cause wear. If there is a cracked jewel, you can be doing great damage.

Don