Swan neck movement? Yeah right.

[Nanuq]

Gents, I've recently picked up a PAM 604 with the P.3000 movement.  It's running pretty fast so I did some research... several sites are saying it has a Swan Neck regulator.  They also say it has Decorative Plates to look like a P.3000.

The only regulator I see is the tab sticking out from the balance jewel holding the end of the hairspring.  Looking closely I figured the hairspring approaches the tab from the right, so I turned the tab clockwise to lower tension and slow it down.  It doesn't seem to make any difference in the rate.

Is there another approach to regulating this?

 

 

[Mike on a bike]

I remember reading way back ( years ago) about swan neck regulators on some rep movements and they did crap in regard to regulating the movement, more for show. Does this apply to the P3000 I do not know.

[Nanuq]

I've been looking and there are other PAMs with the same case diameter but much prettier movements, also with swan neck regulators.

Being a dyed-in-the-wool Rolex guy, and knowing excruciating minutiae about the beasts, it's a little painful to be a noob neophyte about PAMs.  What is the ligne and stem height, what are the hand tube diameters?  Will a 6497 fit a P.3000 case?

Argh.  I have to start all over again with a new brand.

 

[ceejay]

I'm making an educated guess here, that is a faux plate covering the regulating arm. The arm you attempted to adjust is the stud retaining arm. It is used primarily for anchoring the hairspring and adjusting the beat error. It 'should' also have an affect on the timing.

The regulating arm I guess is hidden beneath the faux plate. Just remember, tiny, tiny movements make a lot of difference to the rate.

 

If you get stuck, you're welcome to send it to me for regulating FOC

I was right... 

 

[Nanuq]

Excellent! Thank you, looks like I can swing that regulating stud CW a smidgen to slow the bad boy down a bit.