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 34.4mm across excluding the crown by 39.5mm lug tip to lug tip. New acrylic crystal. Brand new case gasket. Original signed crown. The factory's original dial is in excellent condition. The correct set of clean original index hands matches the hour indexes. Professionally serviced manual wind movement working solid and accurately. The movement is an Omega calibre 601 with serial number 25033382 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.