Hi, can someone explain me more about CSOC? What does it mean for the watch? I know it means that it being tested for a longer time and need to keep accurate time of +8 or -6, but what more?
and also, why does it cost so much? why does the same watch with CSOC can cost up to 1000$ more? what is so expnsive there?
and also, Is it worth it these days? does it make any different for the watch?