Losing almost 30 sec in 4 hours

[techno89]

Hi Everyone,

I recently just put the rotor back on myself after it had came loose, before that the watch was keeping literally perfect time. Now for whatever reason I l lose almost 30 seconds in 5 hours based on timing it with my comps digitial clock

Any idea whats going on? I even turned the adjustment screw towards positive and it seems to have done nothing.

Asian ETA 2836 28800bph from trevor.

Thanks
scott

 

[rsh]

The rotor banged the balance wheel and screwed it up. It may get better over a little bit of time. It may need a new spring, perhaps it can be regulated.

 

[techno89]

Anything I can do to help it myself? It seems to run perfectly fine just with a newly found delay (yes i know thats an oxymoron)

 

[watchwatchwatch12345]

sorry to hijack this thread. but i have a watch that's running a modified seagull movement and it's losing about 45s a day. will regulating it helps?

 

[rsh]

it should help to regulate it

 

[techno89]

it should help to regulate it

How do you mess with those little pitchforks?

 

[mydnytrydr]

How do you mess with those little pitchforks?

Due to the terminology used, I would recommend that you take it to a certified watchsmith..:cheers:

 

[techno89]

Due to the terminology used, I would recommend that you take it to a certified watchsmith..:cheers:

While I might not have called them adjustment forks or whatever the technical term is does not mean I cannot adjust them. I work on tiny electronics every day and am used to the intricacies of tiny objects with lots going on inside of them.

 

[Alex_P1]

While I might not have called them adjustment forks or whatever the technical term is does not mean I cannot adjust them. I work on tiny electronics every day and am used to the intricacies of tiny objects with lots going on inside of them.

This is how I regulate a movement and is for information only, anyone seeking to copy this does so at their own risk.

I set the watch against a digital to the second and then allow to run for about 4 hours.

I compare it with the digital and then see if it has gained or lost time.

I then whip the back off and take a photo of where the advance/retard device is and then, using the correct size screwdriver, carefully adjust the advance/retard screw or leaver to the + (if it is losing time) or - (if it is gaining time).

Reset the watch to the digital and repeat as required.

It takes me about 3 or 4 days to get to under +/- 10 secs a day. I also find that you can get slightly different results between the bench and wrist, so I often carry the watch around in my pocket during the day and leave it stationary at night, which best replicates its normal life.

Good luck.

 

[ado213]

Hi Here's one for you.

The rotor screw is too long and is touching the second wheel pinion and perhaps the jewel. The rotor screw id directly on top of the second pinion, have a look. Don't laugh, i've seen this on a few Asian 2836's. This is a manufacturing fault, remove the screw and see how the watch runs, if no better look under 10x mag at the second pinion and top jewel.

Cheers Ado213

 

[MrSteed]

Maybe if got magnetized?

 

[45acp]

The balance wheel may have just gotten tangled, or have a piece of debris sticking a couple of the coils together. If you have a loupe it might be worth looking at.

 

[Raddave]

Wouldnt a tangled hairspring cause it to run faster?

Seems like the tangle would reduce the effective length of the hairspring, increasing the beat frequency and speed the watch up

 

[45acp]

Wouldnt a tangled hairspring cause it to run faster?

Seems like the tangle would reduce the effective length of the hairspring, increasing the beat frequency and speed the watch up

It would. I misunderstood the OP, apparently.

 

[MrSteed]

Google demagnetizing a watch.