Endlink authentication - numbers 6, 506, and 516

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@Castle4444 do you know if they’re ridged or ridgeless ? Objective here is to find ridgeless examples with known provenance.
 
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@Castle4444 do you know if they’re ridged or ridgeless ? Objective here is to find ridgeless examples with known provenance.
I’ll check when I get them back from Mr Freese
 
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I just checked my bracelet stuff now and found 3 ridgeless and 16 ridged. All those end pieces have been with me for a very long time now, so it's not very likely to think they have been faked.

There's also a NOS 7912 bracelet with #6 end pieces, which are ridged.

And after having read this thread here I personally think that the ridgeless were contemporary service parts, maybe from a different producer.

Hope that helps. 😀
 
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I just checked my bracelet stuff now and found 3 ridgeless and 16 ridged. All those end pieces have been with me for a very long time now, so it's not very likely to think they have been faked.

There's also a NOS 7912 bracelet with #6 end pieces, which are ridged.

And after having read this thread here I personally think that the ridgeless were contemporary service parts, maybe from a different producer.

Hope that helps. 😀

This certainly helps if you’re specifically talking about no. 6 endlinks that all share the same characteristic stamp shape as defined by @michael e.

Can you confirm that those 19 endlinks are all no.6, and all have this shape of stamp ?



And also if you have both types in your hands, could you try and ascertain if there are any other differences between the ridged and ridgeless 6s. If there are differences, it would be interesting to compare a ridgeless 6 against a 506.
 
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This certainly helps if you’re specifically talking about no. 6 endlinks that all share the same characteristic stamp shape as defined by @michael e.

Can you confirm that those 19 endlinks are all no.6, and all have this shape of stamp ?



And also if you have both types in your hands, could you try and ascertain if there are any other differences between the ridged and ridgeless 6s. If there are differences, it would be interesting to compare a ridgeless 6 against a 506.

Yes, I was talking about #6 end pieces. The 6 looks the same here and there. And I can't find any optical differences from the outside.
 
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It’s certainly nice to have some extra samples. As the 6 stamping appears to be from the same tooling I’d guess it’s the same manufacturer, unless of course the punches were issued from Omega themselves to the suppliers. Not sure how likely that would be.

So I still side with the idea that they’re transitional between the no. 6 and the no. 506, and the new process to make the ridgeless 506s was used to make a few batches of ridgeless 6s.
 
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So I still side with the idea that they’re transitional between the no. 6 and the no. 506, and the new process to make the ridgeless 506s was used to make a few batches of ridgeless 6s.

Good point. We'll never know...
 
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This thread is fascinating and consequently I have just had my single No.6 end link under the loupe. To use the description given earlier in this thread, it's a knobbed6/ridged/double-slot link. It has the distinctive '6' that I had never before noticed or known about.

If anyone has one (knobbed6/ridged/double-slot) they're looking to sell, I'm still looking for one!!!! 😉
 
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I am bringing this thread back to life because I stumbled across a 6 today that I think is real but, unlike any others I have seen. The number 6 itself looks correct and it has no ridges but, the inside of the link has a lip. See pics, it has a sort of ledge where the last link goes in and is not an open hole. The best picture to exhibit this is from the top of the end link looking down. You cannot see my hand through the end link because there is a ledge there from manufacturing. Hard to explain.. View attachment 709693
 
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I am bringing this thread back to life because I stumbled across a 6 today that I think is real but, unlike any others I have seen. The number 6 itself looks correct and it has no ridges but, the inside of the link has a lip. See pics, it has a sort of ledge where the last link goes in and is not an open hole. The best picture to exhibit this is from the top of the end link looking down. You cannot see my hand through the end link because there is a ledge there from manufacturing. Hard to explain.. View attachment 709693
These are legit.
Some of the earlier ones have a flange on the inside.
 
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Thats the word.. Flange. Yes, I was fairly certain it was real, just never seen one like it. Maybe the fact that it was early and has no ridges may be some clue as to why some do and others dont have ridges. The mystery continues..
 
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Would seem like that's a higher quality version, requiring more steel and more machining.

So unlikely to be fake, right?

Also, would guess is it's an earlier version that got discontinued later on for cost savings (much like stepped dials and applied metal logos).

...That being said, AMLs also got pulled supposedly since they would come loose in the dial -- maybe the flanges put undue pressure / torque on the spring bars?

Interesting though, thanks! Have never seen these flanged versions myself before...
 
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Wow, my heart races to see a box of old bracelet stuff😀 I've only had one pair of 506s and I may have a pic somewhere of the 1035 I put them on, but only from the top. Got them a year and a half ago in a box of bracelet parts (the Zodiac bracelet caught my eye as it was almost complete). In bottom of box were pair of 6, 16 and at that time unknown to me as to what they were, the 506s. I only recently learned about the 6s with ridges vs no ridges. I know this has been discussed elsewhere and I will defer to those experts. I can say that the aftermarket 6s I bought from an ebay UK seller had the lines cut on top and not stamped and therefore did not have ridges on back. They also had taller number 6 (1.5mm vs 1.0mm) so they could be told from genuine. I know there are now different aftermarket ones to be had and I am not sure about their tells.
 
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Any opinions on these which just sold on eBay recently for a decent price?

 
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Some front side... pics are not great obviously, but price seems good, if they're legit.

 
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They look original. What did they go for?