This has to be one of the nicest steel case vintage Omega Seamaster 600 and it's an uncommon example as well. It's a transitional Seamaster 600 with the extra Genève print on the dial. The case model is 135.011 which is a Seamaster 600 case model initially, however, at the very end of the 1960s it gets replaced with Genève. The solid stainless steel original case is in very good unpolished condition. The case measures 34.5mm across excluding the crown by 40mm lug tip to lug tip. Original signed acrylic crystal in great shape. Brand new case back gasket. Original signed crown. The factory's original dial is in superb condition. The correct set of clean original index hands matches the hour indexes. Hands and hour indexes are gold tones. Professionally serviced manual wind movement working solid and accurately. The movement is an Omega calibre 601 with serial number 25033307 dating this timepiece 1967. This watch will come with a brand new 18mm high-quality vintage-style leather strap. The wrist size in the photo is 6 inches.