There have been questions regarding bracelet compatibility of certain PAMs on certain bracelets. This is an effort towards providing some answers to those questions. 
There are basically two types of bracelet designs, the old type and of course, since one is called old, the other one would be the new style (OP actually does not differentiate these two and just call both metal bracelets).
There is a difference between the two aside from the design of the links (the old one has overlapping scallop design, the new type has a more modern right angled design). The old type has tabs that protrude at the sides of the end links which basically grab the bottom of the lugs and provide an anchor for the bracelet aside from the screw that threads into the bracelet, end link and the lugs. This bracelet was used on earlier series PAMs (J series as far as I can tell as I've seen these bracelets on PAM111 J series).
You can see the tabs on this picture of the back on the PAM111 J
The new type does not have these side tabs, instead it has these tabs at the end of the end links which latch onto similarly shaped depressions on the mid-case and provide a similar type of support for the bracelet. These came out on the L-series 1950s cased PAMs such as the PAM328 and PAM329, which were released in 2009 (as per correct millesimation).
For this thread, we will use two bracelets and two watches. The bracelets are both new type, one coming from the old A7750 PAM328 L series rep (unknown factory), and the other one coming from the new Noob PAM299 O series. The watches are the PAM299 O series and the PAM356 O series, both made by Noob factory.
First off, let's compare the lug screws from both watches, just to see if there are any differences. PAM299 on the left, PAM356 on the right, unless otherwise specified.
No differences in shape or length.
Second, let's compare the two bracelets and see whether we can easily identify one from the other. PAM299 bracelet on the left, PAM328 bracelet on the right, unless otherwise specified.
As you can see, there is a difference between the two, the PAM299 SEL cutout is circular (and dull), the PAM328 SEL cutout is angular (and polished).
The two watches in question. PAM299 O on the left and PAM356 O on the right, unless otherwise specified.
Now proceeding with the experiment with the question, Will the PAM299 O series bracelet fit the PAM356 O?
Upon fitting the SEL, the tabs on the PAM299 bracelet fit the PAM356 mid case perfectly. However, will the lug bar go through all the holes (there is always the possibility of that, as this is the reason I could not use the PAM328L bracelet with the PAM312 O series, which is caused by the slightly thicker case)?
Success!
The SEL fitment is nice, being almost flush with the lugs.
Wrist shot
Now since the PAM299 head is all by its lonesome and the PAM328L bracelet is also pairless...hmmm, I wonder. So we go through the process, step by step.
SEL fitment, PAM328L bracelet on PAM299 I had to use the lug bar as the SEL simply would not stay put. :lol:
Looking good, now with the full bracelet.
SEL fitment, not as nice as with the PAM299 bracelet on the PAM356 (as well as the PAM299 bracelet on the PAM299), but it'll do.
Wrist shot
Group shot of the two (with the hard working QR tool in the background).
I hope this proves to be useful as well as informational. As a parting shot, I remembered that the PAM438 Tuttonero bracelet was a new style design but using the old style SEL tabs at the side. The PAM438 was a Luminor 1950s cased PAM with screw in lugs. Would it fit a Luminor Bettarini case with screw in lugs as well? I did not have much in terms of PAM choices (yeah, I don't have enough PAMs :lol: ) but I remembered I had a PVD PAM, so I tried it and viola! I present you the Luminor Black Seal Tuttonero!!!
Thanks for reading.
There are basically two types of bracelet designs, the old type and of course, since one is called old, the other one would be the new style (OP actually does not differentiate these two and just call both metal bracelets).
There is a difference between the two aside from the design of the links (the old one has overlapping scallop design, the new type has a more modern right angled design). The old type has tabs that protrude at the sides of the end links which basically grab the bottom of the lugs and provide an anchor for the bracelet aside from the screw that threads into the bracelet, end link and the lugs. This bracelet was used on earlier series PAMs (J series as far as I can tell as I've seen these bracelets on PAM111 J series).
You can see the tabs on this picture of the back on the PAM111 J
The new type does not have these side tabs, instead it has these tabs at the end of the end links which latch onto similarly shaped depressions on the mid-case and provide a similar type of support for the bracelet. These came out on the L-series 1950s cased PAMs such as the PAM328 and PAM329, which were released in 2009 (as per correct millesimation).
For this thread, we will use two bracelets and two watches. The bracelets are both new type, one coming from the old A7750 PAM328 L series rep (unknown factory), and the other one coming from the new Noob PAM299 O series. The watches are the PAM299 O series and the PAM356 O series, both made by Noob factory.
First off, let's compare the lug screws from both watches, just to see if there are any differences. PAM299 on the left, PAM356 on the right, unless otherwise specified.
Second, let's compare the two bracelets and see whether we can easily identify one from the other. PAM299 bracelet on the left, PAM328 bracelet on the right, unless otherwise specified.
The two watches in question. PAM299 O on the left and PAM356 O on the right, unless otherwise specified.
Now proceeding with the experiment with the question, Will the PAM299 O series bracelet fit the PAM356 O?
The SEL fitment is nice, being almost flush with the lugs.
Wrist shot
Now since the PAM299 head is all by its lonesome and the PAM328L bracelet is also pairless...hmmm, I wonder. So we go through the process, step by step.
SEL fitment, PAM328L bracelet on PAM299 I had to use the lug bar as the SEL simply would not stay put. :lol:
Looking good, now with the full bracelet.
SEL fitment, not as nice as with the PAM299 bracelet on the PAM356 (as well as the PAM299 bracelet on the PAM299), but it'll do.
Wrist shot
Group shot of the two (with the hard working QR tool in the background).
I hope this proves to be useful as well as informational.
As a parting shot, I remembered that the PAM438 Tuttonero bracelet was a new style design but using the old style SEL tabs at the side. The PAM438 was a Luminor 1950s cased PAM with screw in lugs. Would it fit a Luminor Bettarini case with screw in lugs as well? I did not have much in terms of PAM choices (yeah, I don't have enough PAMs :lol: ) but I remembered I had a PVD PAM, so I tried it and viola! I present you the Luminor Black Seal Tuttonero!!!
Thanks for reading.
