Thanks for the photo HM,
your pic shows H-series OPIX Swiss ETA 6497 mov't. Although not 'cosmetically' correct for Fiddy which was released in 2002 when the E-series OPIX was used, it's a good movement.
I'd rather have that H-series mov't in my rep than the "Swiss" E-series questionable mov't Ziggy wrote about. Although the notorious "c0ck & balance wheel" problem seems to be a thing of the past on that particular version, there's still a question of it's mysterious origin. After all the investigation of other forumers including myself, the concensus is that it's a mish-mash of diferrent NOS ETA parts (baseplate), Asian drive-train, bridges and S/N regulator. This is also the only "Swiss ETA??" that comes with dial retention screws on the side of baseplate - something even Ziggy identify as 'strange'.
Wear it in good health,
babola