I thought it should be with a different rotor?
http://www.ebay.com/itm/Tag-Heuer-C...ristwatches&hash=item1c348077e5#ht_5434wt_927
http://www.ebay.com/itm/Tag-Heuer-C...ristwatches&hash=item1c348077e5#ht_5434wt_927
It looks gen to me... They did do a rotor like that for that movement, just very difficult to see the striping on this one. Mainly as it looks like the pic was taken on a light box.