25 Jul 2015, 22:31
I sent the seller some pics that clearly show the structural differences between the solid and goldfilled cases. The case back is a different story; doesn't look to me like the gold layer has been disturbed, which would mean that the stamping is incomplete (I have never seen that before). The "14K" marking is, of course, still in the position it would be in, if it were part of a standard 14K stamping (on solid gold models, the "14K" or "14K GOLD" mark is centered directly above the serial number). However, the listing is still up and unchanged, so I guess the seller remains unconvinced.
UPDATE: Listing ended, "Item No Longer Available". I guess they finally looked at my pics and got the message. On the other hand, if they actually sold this, privately, sooner or later that will come back to bite them, big time.
BTW, ALL solid gold models (especially the P2s, 3s, and 4s), whether 14 or 18 karat, have this same type of internal construction. 14K cases have a single "X" centered above the time screen; 18K, a "XX", to avoid confusion (marking done at factory).