Thoughts on this Patek Calatrava?

Hey guys - hope you all had a great Christmas!

I had a question on a Patek Calatrava I have found for sale online recently.

The listing and caseback indicate the watch is a reference 2568-3 / 4. However, I'm struggling to find another Calatrava of this reference which matches the dial or the case shape of the watch in question. The key differences being that many of the other examples of this reference (more specifically the 2568-3) seem to have different lugs, and also seem to be missing the plots on the outer rim of the dial, which is more consistent with what you’d expect to see of a 2588. I have attached some pictures below for reference.

Does this suggest the dial, case, or simply the caseback of the watch has potentially been swapped somewhere down the line? Or was it relatively normal for Patek to have some variance in design amongst the same reference number? Could it be possible that the 2568-3 / 4 is distinct from a 2568-3, and therefore their designs could be different?

I am somewhat new to the world of Patek so any help of guidance would be much appreciated before I dive in!

Thank you.

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The watch in question (2568-3 / 4):


Comparison found online (2568-3):


Comparison found online (2588):

Apologies if it was unclear in my post - but the three watches I have presented here are the result of my having done this research.

To summarise:

1. I've looked into the reference 2568-3 / 4 but found no examples that looked identical to the model I found for sale (which is shown in picture 1).

2. When I did look into other examples for the reference 2568-3, they mostly had different dials and, more notably, different case shapes (as showcased in picture 2).

3. If we now turn our focus to the dial - I could not find any 2568 references with dials that features the outer plot makings seen on the watch in question, and when I did find a similar dial, it was for a different reference, namely the 2588 (as showcased in picture 3).

My findings would suggest that there may be something off or "franken" about the watch I have found for sale - but I don't feel like I am familiar enough with Patek Philippes to draw any certain conclusions on this.

If you noticed the inscription "/4" after "2568-3" on the case back seemed to be added on as the alignment and depth of stamp is not consistent.

And what could this mean? A Patek Phillipe case, made for this movement and dial?

I had a very good fake Patek come my way, to look at it from the outside it looked real enough, but my suspicious mind made me check the ref# and nowhere could I find another, Plenty similar with close Ref#s, it wasn't until I opened the case and saw a movement of somewhat less than Patek quality and finish, was I sure it was a fake and to be avoided.

You may need to open the case or have it opened to inspect the movement for your piece of mind

Ah, how can I missed out the movement!

High quality fake?

This is the 2568-3:

You can see the case, case back, and inscription on movement different from the 2568-3/4.

I think the "/4" was added to disguise the fake watch.