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soundefx

Date adjustment not working

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soundefx

Hey all.  I recently picked up a gorgeous rep IWC Big Pilot Top Gun (ref 502001).  All works well except the crown adjustment for the date.  Once unscrewed, it winds normally in position one and sets time properly in position three.  Position two is supposed to adjust the date but the crown spins without changing the date (both directions).

This isn't the worst problem since I keep it wound and only have to adjust the date through rotating the time once every two months.  But I'd like to get this fixed if possible.

I'm not sure what movement it has.  Is this problem anyone is familiar with?  Is this something easily fixed?  Any info would be greatly appreciated!

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GenTLe

Typical issue with 7750.

Definitely NOT something "easy to fix" for anyone that doesn't know the movement inside his watch. Handle the hands of a 7750 is not easy nor for beginners.

To fix it there is the need to:

- remove the movement from the case

- remove all the hands and the dial

- remove the upper plate of the movement

- replace the double changer (https://m.ebay.com/itm/232265247927)

- remount the whole thing in the reverse order

I'd say at least a couple of hours (most of the time spent to put back the hands in the proper position). 

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