Hi, my friends, I come to omega forums to look for some answers. Some years ago I bought this Omega Seamaster chronometer 352 cal. I thought that it was a Franken watch but I have some doubts now. First, the model number is 2657- 1 / 2494 without SC mark. I think that this kind of model (center hand second) must have the SC mark, but I have found some examples that don´t have this marker. Second, I can´t find the same dial (mine with horrible redial) in other omega watches until recently, I spotted a similar dial with a jumbo case and a chronometer movement too. Do you think that the only thing that this watch need is a new dial or is a totally Franken watch? P.D. If anyone has a spare dial similar to this one, please, contact me. Kind regards.