I found this 7750 movement in Ebay, but i am not sure if it is original swiss made or is an asian copy. The seller says that is an original one (ETA-swiss made) but the item description indicates this hand sizes: second center hand 0,20mm, registers - chrono subdials 0,20mm (as asian copies). The ETA manufacturing specifications indicates 0,25mm for second center hand and 0,18mm for registers.
I am attaching the following pictures:
I will appreciate you opinions.