I'm wondering where you have gotten your information. As the seller of this watch, and also the original purchaser and only owner of this watch, I can tell you that it is all original -- just as it came to me from Heuer - New York. It is a Carrera 45 Dato, and in the OTD chart listing this model, it shows that all of the Carrera 45 Dato models came with the Landeron 189 movement, just as this one has. The only part changed on this watch is the crystal, the rest is just as original.

: I am surprise no one has suggested this is a fake, the bridge is
: engraved, and very strangely, the export code is not
: Heuer/Leonidas and Heuer did not use that Landeron movement to
: my knowledge? I don't need to see the dial side.