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Old 31 July 2023, 08:20 PM   #1
Watchyourlanguage
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Icon19 The A after a 15400 reference

A question regarding the reference for the 15400 models!

So I noticed some 15400 references end with an A instead of just a number.
From what I've searched online, it seems that there are minor differences in the case and movement (although the movement seems to be the same cal.3120)

Does anybody know what these specific differences are?
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Old 2 August 2023, 06:57 AM   #2
ikincooper
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Quote:
Originally Posted by Watchyourlanguage View Post
A question regarding the reference for the 15400 models!

So I noticed some 15400 references end with an A instead of just a number.
From what I've searched online, it seems that there are minor differences in the case and movement (although the movement seems to be the same cal.3120)

Does anybody know what these specific differences are?

I’m certainly no expert when it comes to AP, however the suffix’s below refer to case materials. Others exist too…

ST for Steel
OR for Rose Gold
BA for Yellow Gold

Strangely, I do not believe that the 15400 model was available as a BA so now sure if the above answers your question or observations or not!?

Hope this reply helps a little nontheless


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Old 7 August 2023, 02:13 AM   #3
dh1
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I've noticed this too. I think he means something like:

15400ST.OO.1220ST.01 vs
15400ST.OO.1220ST.01.A

https://www.audemarspiguet.com/com/e...20ST.01.A.html
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