It's a nice bike but I think none of the parts are c-record. Rear mech looks like nuovo record, hubs & brakes are nuovo/super record era. Shifters & front mech are c-record era but not neccessarily c-record (could be athena for example).
Regarding the crankset, it may be an ofmega sr copy judging by the dust caps? While everyone made copies of the SR crankset, quite a lot of these copies are actually superior to the original, especially as regards the finish. The edges at the intersection between the crank arm and the spider are rather sharp on the original campa cranks that's why they are very prone to hairline fractures in this area. Imho it's a flawed design: https://www.lfgss.com/comments/13219300/ . The sugino mighty, which is also a campa SR copy more or less, has a finish which is miles better with rounded edges at the crank arm-spider intersection which has the effect that stress is distributed more evenly. I wouldn't be surprised if your bike originally came with campa cranks which were replaced after they failed... but that's just a guess.
Finding the exact same pattern can be quite hard as the in-house fluting and milling components was a very common practice back then. Not only the big names as DeRosa or Colnago did it, but smaller brands like Stelbel or even small shops did it as well.
It's a nice bike but I think none of the parts are c-record. Rear mech looks like nuovo record, hubs & brakes are nuovo/super record era. Shifters & front mech are c-record era but not neccessarily c-record (could be athena for example).
Regarding the crankset, it may be an ofmega sr copy judging by the dust caps? While everyone made copies of the SR crankset, quite a lot of these copies are actually superior to the original, especially as regards the finish. The edges at the intersection between the crank arm and the spider are rather sharp on the original campa cranks that's why they are very prone to hairline fractures in this area. Imho it's a flawed design: https://www.lfgss.com/comments/13219300/ . The sugino mighty, which is also a campa SR copy more or less, has a finish which is miles better with rounded edges at the crank arm-spider intersection which has the effect that stress is distributed more evenly. I wouldn't be surprised if your bike originally came with campa cranks which were replaced after they failed... but that's just a guess.