I have an omega watch, the inside of the case is signed as is the movement, however I cannot find another one like it anywhere online. Has a Harley Ronda 3775 movement (signed Omega). Before I try and sell this I just want to make sure it's real. Seems strange to put a in decent quartz movement, have it signed inside the case and on the movement and be a fake, but since I can't find another like it I want to make sure. Any help is greatly appreciated!