This is a marvelous and gorgeous vintage Omega Seamaster Chronograph watch. The watch works excellently (just serviced), and all chronograph features work correctly. The manual wind chronograph movement is an Omega calibre 321 with 17 jewels—the movement serial number dates this watch to 1967—unpolished gold plated over steel case in very good condition. Visible minor oxidation on behind the lugs. The case measures 35.3mm across, excluding the crown by 41.3mm from lug tip to lug tip. The case model is 145.005-67. The acrylic crystal is new, covering a stunning original factory finish dial. The dial is not in perfect condition, but exceptional for this reference. It will come with a new 18mm genuine leather strap. The wrist size in the photo is 6 inches.