This vintage Omega Seamaster Calendar Automatic with the desirable black star dial configuration is a charismatic mid-century wristwatch, dating from the late 1950s. With its 34mm stainless steel case and richly patinated black dial, it offers a wonderful blend of classic Seamaster design and unique aging that gives the watch a strong character and individuality. The watch is a reference 2849 10sc and features a central sweep seconds hand plus a framed date window at 3 o'clock with magnifier, forming the practical Calendar function. Inside ticks Omega's automatic caliber 503, a copper-toned movement with full rotor winding visible through the open caseback shot. The black dial is accented by applied gold-tone arrowhead hour markers and dauphine hands, while the aged and spotted surface creates the striking "black star" effect that collectors appreciate for its distinctive appearance. The stainless steel case shows the classic Seamaster screw-back construction with the embossed hippocampus medallion, and a signed Omega crown is fitted. Overall, the watch presents as a well-preserved period-correct Seamaster with a highly atmospheric tropical dial. New leather patch An aftermarket certificate of authenticity It is fully functional