mickeypro said:
On trustys site he lists the 183G and 183H, for $20 more you get ETA Asian Unitas vs Asian Unitas. Is there much difference?
I'd go with 183G, if I were you.
The older G rep comes with better quality dial, cutouts are sharper and shapes of numerals much closer to the gen. It is also first BS series with 'Black Seal' txt above 6 o'clock released in 2004 for only one series, replaced with H-series with diferent mov't and dial txt as Joe mentioned above.
As far as the cases differences on BS reps go, ALL new cases now are stamped with H-series serial number, no G-series cases are available any more.
Rep cases are also slightly different than gens, especially corners of the case and longer lug wires, but not much noticeable unless you compare it side by side with the gen.
hope this helps a bit,
babola