Cal. 324 free spring balance

[Ac1013]

Button on the 5712 for the 240 Free Sprung Balance?

Yea. 5712 use button to change date n moon

 

[RollyAP]

Interesting comparison between a gen and 324 free sprung balance, especially the timings.

 

[dogwood]

Interesting comparison between a gen and 324 free sprung balance, especially the timings.

Very interesting point raised in the video about the hardness of the carbon steel used in rep movements. I understand why the screws aren't hardened (cost), but I'm unsure if rep movement wheel pivots are or are not hardened / tempered carbon steel. I'll need to think of a way to test this... I have a lot of spare parts from various movements, I guess I could try using a set of hardness testing files, but the size of the parts might make such a test quite hard (pardon the pun).

 

[RollyAP]

Very interesting point raised in the video about the hardness of the carbon steel used in rep movements. I understand why the screws aren't hardened (cost), but I'm unsure if rep movement wheel pivots are or are not hardened / tempered carbon steel. I'll need to think of a way to test this... I have a lot of spare parts from various movements, I guess I could try using a set of hardness testing files, but the size of the parts might make such a test quite hard (pardon the pun).

Would be interesting to get your take on the movement as a watchmaker @dogwood and seeing how much those timing numbers can improve with a service, it's all good for it to be a free sprung balance movement but not sure if it's worth it if the accuracy takes such a hit.

 

[dogwood]

Would be interesting to get your take on the movement as a watchmaker @dogwood and seeing how much those timing numbers can improve with a service, it's all good for it to be a free sprung balance movement but not sure if it's worth it if the accuracy takes such a hit.

Those timing numbers are due to poor poise (symmetry) of the balance wheel. When you adjust the rate of a free sprung balance movement, you need to adjust the weights symmetrically in pairs. If you don’t adjust the weights in pairs, you’ll mess up the balance’s poise. I kinda suspect that the watch in the video had somebody who didn’t know what they were doing try to regulate it. But we’ll see. I have a free sprung 240 Patek movement inbound for a project so I’ll test it once it’s here.

 

[Huss.A]

This video is very interesting, the quality of the free sprung movement is very bad, how this cost 2k?! And why it doesn't have the gold rotor!
Seems doesn't worth.

 

[dogwood]

One of these movements arrived on my bench today for a project I’m doing… unlike the movement in the video, the one I have is actually quite stable across different positions. It’s not COSC but it’s not bad.

 

[grillbrill]

One of these movements arrived on my bench today for a project I’m doing… unlike the movement in the video, the one I have is actually quite stable across different positions. It’s not COSC but it’s not bad.

Have you worked on the ACE 324 movement, too? If so then what is your opinion?

 

[dogwood]

Have you worked on the ACE 324 movement, too? If so then what is your opinion?

I haven’t (yet). I’ll be sure to post if / when I get the opportunity.

 

[lovegensandreps]

One of these movements arrived on my bench today for a project I’m doing… unlike the movement in the video, the one I have is actually quite stable across different positions. It’s not COSC but it’s not bad.

Oh those are perfectly acceptable numbers for a rep. Did you get those results after regulating it or was it like this out of the box?

 

[dogwood]

Oh those are perfectly acceptable numbers for a rep. Did you get those results after regulating it or was it like this out of the box?

This was out of the box. I didn’t touch it —I let sleeping dogs lie

 

[RollyAP]

Looks like there's an in-between option 324 movement available where the regulator arm can be hidden

 

[Ac1013]

Hidden regulator damage the movemwnt dont do it.

 

[Ac1013]

Ace movement runs fine, 240 and 324. And hidden regulator mod is bad to the movement , and even with this mod, the movement wouldnt look anything close to the ace movement anyways. i have worked with these before.