This is a Yema Rallygraf Super, Reference 93012, from the early 60s. This is the super rare 3 register version (not the more common 2 register "Andretti" variant). Mario Andretti made Yema famous by wearing his while racing in the Indy 500, Le Mans, etc. The Rallygraf Super is incredibly collectible, being far more rare than other variants.
I believe this is one of the finest examples in the market, the case appears unpolished, the watch is all-original, and the dial near-perfect. The item "RARE ORIGINAL VINTAGE YEMA RALLYGRAF SUPER CHRONOGRAPH 7736 SUPERB NO RESERVE" is in sale since Wednesday, November 20, 2019. This item is in the category "Jewelry & Watches\Watches, Parts & Accessories\Wristwatches".The seller is "2010madone" and is located in Newton Center, Massachusetts. This item can be shipped to United States.