I have been dealing vintage watches for many years and this week I purchased this watch from by brother and this is the first time that I have heard or seen this caliber 591. I own a watch repair shop and have a large omega parts/movements inventory but not for this watch. Basically I need the automatic part for this watch, the watch runs when wound but the auto function doesn't work, any help would be appreciated.

 

This page might be of some use: http://www.chronomaddox.com/OmegaCaliberList.html#Movements Through the Years.

I presume you know it's a redial.

 

I even know the person who refinished the dial