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orient 46941 regulating


nickpeh

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Hi, 

I tried to regulate the movement from orient 46941, it seems how slow i tried to adjust the reading still the same and time shown average 3 mins faster in just few minutes. Is it the problem lies on the beat error ? By using this software, beat error showed zero, so I eliminate the idea of that...any advice from u guys?

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I am kinda new to watch disassemble, in this pic config will I able to remove the balance bridge assy ? I tried to remove but seems something not releasing from lower area , I am afraid to pull due to the hairspring. Do I need to remove any parts frm dial side to release this balance bridge?

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High rate / low amplitude suggests that the h/s coils are fouling up on something.

You said that you have cleaned the h/s; when you reinstalled the balance did the h/s coils sit nice and concentric or were they still bunched up as in your earlier photo?

How did you clean the h/s?

Is the h/s sitting parallel to the balance with proper clearance to the balance arms and the cock?

Have you tried demagnetising it?

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53 minutes ago, nickpeh said:

After several hours of regulating , seems cant get the gained rate lowered...wondering what could be the issue.

 

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Something is fowling the hairspring at a guess. Your original post showed a good amplitude and the beat was within tolerance so something has gone wrong since your adjustments.

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1 hour ago, Marc said:

High rate / low amplitude suggests that the h/s coils are fouling up on something.

You said that you have cleaned the h/s; when you reinstalled the balance did the h/s coils sit nice and concentric or were they still bunched up as in your earlier photo?

How did you clean the h/s?

Is the h/s sitting parallel to the balance with proper clearance to the balance arms and the cock?

Have you tried demagnetising it?

Is there an easier way to demagnetise?  I soaked in kerosene and leaving it to dry , repositioned it and anchored down.

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Clockboy is right.  Raw kerosine is distilled from crude oil can also contain a lot of sulphur and other undesirables so is not suited for cleaning any parts of a watch unless very very dirty with old caked oil (then need to ensure you clean off all the kerosine).  It can though be used as a penetrating oil to ease tight fitted parts.  Rather than use raw kerosine use BBQ lighter liquid fuel as this is basically de-odorised, de-sulphurised and cleaned up kerosine.

Edited by canthus
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I did degreased it after soaking in kerosene using solvent, but after detailed inspection, realized hairspring end was slight bent causing the balance wheel unable to stay center. I will get new one to replace.

orient 46941 movement seems no banking pins, so now is it align the balance wheel impulse pin between pallet fork?

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