Hello, I'm new to this forum and would like to present myself as an interested yet inexperienced Omega enthusiast. My question to start off is one about an Omega Seamaster Automatic Calendar of a certain vintage that I consider buying. The watch, as shown in the photo (unfortunately the only one I have), is a nice gold case Seamster Automatic that appears to keep time well. It has no Seamonster logo on the reverse but rather a simple "Omega" and "Seamaster" inscription. Apart from the obvious, the seller has little knowledge about the watch as he usually collects contemporary watches in a higher price range. The watch was however bought from someone with a keen interest in vintage watches. The seller is a good friend and 100% reliable. My question is regarding the setting of the date of the watch. I have read somewhere that the date on a vintage Seamaster Calendar can be set by pulling the crown all the way out, or, in other cases, by pumping the crown in and out. None of these work in the case of this watch however. The only way to set the date I've found so far is winding the movement hour by hour through the dates. From my limited experience this seems strange. Is this the way the movement is supposed to function? Secondly, I wonder what type of movement would usually be found in such a watch. Any help is greatly appreciated. Thanks!