Here is a stunning vintage Omega Constellation watch dating to 1959 according to its movement serial number: 17007055. This watch has been professionally serviced running strong and accurately. The automatic movement is an Omega caliber 551 with 24 jewels. The rare "Rail-Track" factory original finish dial is well-patina. Silver tone hands and hour indexes. The case is made of solid stainless steel and is in very good original unpolished condition. Case back does shows some old tool markings. Brand new case gasket. Original signed crown. Brand new acrylic crystal. Case model is 14381-2 SC and measures 34.7mm across excluding the crown by 44mm lug tip to lug tip. Watch will come with a matching high quality 18mm genuine leather strap. Wrist size in photo is 6 inches.