Sent my Panoreserve to Swatch, Singapore in October 2006 with a spoilt PR indicator problem. Initially I was disappointed with Swatch. The service was slow and there was no feedback whatsoever. After 4 months I then resorted to writing to Dr Muller and he...
. . . you're fortunate indeed. I would have thought that regulating any of the duplex swan's neck calibers would be more rather than less complex a task for the watchmaker . . . cordially, Art