Polerouter

The twisted lugs are the first casualty of polishing

The Genta case's character is in the lug facets, and polishing rounds them. A Polerouter with soft, rounded lugs has been polished, often repeatedly, and the case reference and serial stamping inside the back may be weakened with it. Because there is no manufacturer archive to appeal to on this brand, weakened stamping is a real evidential loss and not merely a cosmetic one.

Redials are endemic and the crosshair and text placement are the evidence

Polerouter dials of this era are frequently refinished. The features that betray it are the fineness of the crosshair or dial texturing, the exact placement of the Universal Genève signature relative to the twelve marker, and the position and size of Swiss at the base. Original dials show printing sunk into the surface with slightly soft edges under magnification; refinished ones sit proud with edges that are too clean. Given the volume of redials, an original dial is worth a substantial premium — which is exactly why the reproduction of one is worth a forger's effort.

The micro-rotor is the technical identity and it is visible on opening

A micro-rotor sits within the movement's height, recessed into the plate rather than mounted above the bridges, so the movement looks like a manual-wind caliber with a small weight let into it. It is unmistakable once seen. A Polerouter opened to reveal a full rotor mounted above the bridges does not contain a Universal micro-rotor caliber, whatever the dial says — the commonest reason being a replacement movement fitted during a repair when the original was beyond economic service.