IWC

calendar rattrapante’s day is off from the date can that be corrected or does it need to be adjusted by the factory? There are no pushers correctors and everything is apparently pre programmed as to date, day, moon phase and year. So I am wondering if the... 

As far as I know, if one indicator is off, it needs to be reset by IWC.

That's the problem with these IWCs, if one thing goes off, you can't adjust it yourself individually.

I think day of week may be adjustable. Let me fiddle with mine. No, sorry, I must have been thinking of another watch... But it doesn't necessarily need a factory service if you can find someone familiar with the IWC perpetual. Mine had an issue of changi...