Here is a spectacular vintage Omega Constellation watch dating to 1961 according to its movement serial number: 18192059. This watch has been professionally serviced running strong and accurately. The automatic movement is an Omega caliber 561 with 24 jewels. The factory original finish dial is nicely aged and patina. The case is made of a solid gold bezel and gold medallion with gold capped lugs over solid stainless steel. This model was only produced between 1959 to 1961. Case is in immaculate original unpolished condition---As great as it can get. Brand new case gasket. Original correct signed crown. Original signed acrylic crystal. Case model is 14393-10 SC and measures 34.3mm across excluding the crown by 43.5mm lug tip to lug tip. Watch will come with a matching high quality 18mm genuine leather strap. Wrist size in photo is 6 inches.