This is a large size 1952 Omega Seamaster Calatrava in stainless steel. The case measures 35m which was much larger than the average 1950's watch. 

The dial on this watch is silver with patina commensurate with age. The dial has rose gold applied hour indices with a sub second dial. 

The watch is powered by a manual wind caliber 265 Omega movement. This is one of their most iconic movements of the 20th century. This watch has been serviced and is running well. It will come with a one year warranty.