My concern would be the marker ring.
The ring on this watch has machining between the raised hour markers. This is the style usually seen on gold capped Polerouters.
The rings on solid gold Polerouters usually have machining on the hour markers and are plain in between.
I note that this example is the very watch used for this reference in the gallery on the Polerouter reference website so my concern may well be unfounded as I have no other examples of this reference to compare it with (and it would mean the 104503/1 and 104503/4 references were identical).
However without further research, this would be enough to put me off from buying it.
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