Regulating Swiss 2824-2

[Ryes]

Is regulating a Swiss 2824-2 inherently easier than say a Seiko 7s26 with the stud that needs to be moved? Thanks

 

[ado213]

The ETA has a fine regulation adjustment screw with + and - signs next to it, this would give you around 12-16 secs/day each direction, that is if your hairspring is set up correctly.
so all being well and your watch is not running slower or faster than 12-16 sec/day you should be OK just adjusting this alone

The Seiko however does not carry a fine regulation adjustment so the regulator arm on the balance cock has to be moved. Unless you have some form of timing device I would not recommend doing this, as you will have no idea how much you've advanced or retarded the timing.

you may think a small nudge or the regulator arm is just a few seconds, this may not be the case at all.

 

[Ryes]

The ETA has a fine regulation adjustment screw with + and - signs next to it, this would give you around 12-16 secs/day each direction, that is if your hairspring is set up correctly.
so all being well and your watch is not running slower or faster than 12-16 sec/day you should be OK just adjusting this alone

The Seiko however does not carry a fine regulation adjustment so the regulator arm on the balance cock has to be moved. Unless you have some form of timing device I would not recommend doing this, as you will have no idea how much you've advanced or retarded the timing.

you may think a small nudge or the regulator arm is just a few seconds, this may not be the case at all.

I have a timegrapher. The Seiko 7s26 is kind of a pain to adjust even with a timegrapher though!

 

[ado213]

I see, then I suspect you have other unknown issues with the movement. They aren't usually that difficult to time in. Can you post a pic of your timegrapher readings?

 

[Ryes]

I see, then I suspect you have other unknown issues with the movement. They aren't usually that difficult to time in. Can you post a pic of your timegrapher readings?

I will when I get a chance. The biggest issue I'm having is positional changes, dial up I can get it timed pretty well but crown down will be a big swing. I'm getting better at doing very small movements of the regulator arm and I have the best error at 0.1 to 0.

 

[ado213]

First thing to do is check the regulator pins, the hairspring should be able to move ever so slightly between the two pins. If the regulator pins are two far open this will give you greater positional error.

Second thing is two check the lubrication within the balance jewels end caps, do you have any

Third thing, remove the balance complete invert the whole balance and let the balance staff sit in the cock Jewel. Does the balance lay perfectly flat with the cock, are the coils of the hairspring equal in space throughout its form.

If you have to lift the balance wheel slightly to get it to lay flat, it's not centred properly and this would definitely give you positional error.

To give you a further tip, if you can't get DU and DD readings within 10 secs you'll very rarely time a movement in PD position

Get these two readings within this range and you have a chance.

 

[Ryes]

First thing to do is check the regulator pins, the hairspring should be able to move ever so slightly between the two pins. If the regulator pins are two far open this will give you greater positional error.

Second thing is two check the lubrication within the balance jewels end caps, do you have any

Third thing, remove the balance complete invert the whole balance and let the balance staff sit in the cock Jewel. Does the balance lay perfectly flat with the cock, are the coils of the hairspring equal in space throughout its form.

If you have to lift the balance wheel slightly to get it to lay flat, it's not centred properly and this would definitely give you positional error.

To give you a further tip, if you can't get DU and DD readings within 10 secs you'll very rarely time a movement in PD position

Get these two readings within this range and you have a chance.

Thank you for the help! I really appreciate it.

 

[Ryes]

First thing to do is check the regulator pins, the hairspring should be able to move ever so slightly between the two pins. If the regulator pins are two far open this will give you greater positional error.

Second thing is two check the lubrication within the balance jewels end caps, do you have any

Third thing, remove the balance complete invert the whole balance and let the balance staff sit in the cock Jewel. Does the balance lay perfectly flat with the cock, are the coils of the hairspring equal in space throughout its form.

If you have to lift the balance wheel slightly to get it to lay flat, it's not centred properly and this would definitely give you positional error.

To give you a further tip, if you can't get DU and DD readings within 10 secs you'll very rarely time a movement in PD position

Get these two readings within this range and you have a chance.

Ok First photo is DU and second is DD. I'm pretty happy with these numbers. The amplitude is low because I just put the watch on a few hours ago and it is not fully wound. I expect the S/D to drop around the +5 - +10 range once fully wound. What are your opinions?

DU:


DD:

 

[Akuwes710]

I have a timegrapher. The Seiko 7s26 is kind of a pain to adjust even with a timegrapher though!

I recently regulated both movements. Ure right about 7s26 being a pain. I got my 7s26 to be at +/- 6s before giving up lol. My 2824 was easier, got it down to +/- 1.5s. Good luck!


Sent from the RWI mobile app

 

[Ryes]

I recently regulated both movements. Ure right about 7s26 being a pain. I got my 7s26 to be at +/- 6s before giving up lol. My 2824 was easier, got it down to +/- 1.5s. Good luck!


Sent from the RWI mobile app

Its the regulator pin that makes it a pain!

 

[ado213]

Looking at your timegrapher pics, the amp is low on this, your DU pic shows 3 separate trace lines of an amp of 223 deg and a beat error of 0.1 m/secs.

At this rate I would expect a single trace line, your losing power somewhere, possibly n the train, but check the other things I mentioned first as this movement is not running well at all