Here today for sale I have this Omega Seamaster Cosmic 166.026. I've owned a few of these over the years and there are enough interesting variations to build a nice collection around them. The Seamaster Cosmic line was introduced in the late 60's and has a solidly constructed monocoque case and this is a steel variant with a very striking sunburst silver dial. The steel case is in very good shape, with a diameter of 35,5mm which for some reason does feel larger on the wrist. 19mm lugs. I really like the case back on these with the Seamonster logo, reference and other numbers still pretty crisp and clear. This one has a neatly done inscription and logo. Omega crown. The silver-white sunburst dial has raised steel indices at the quarters and is in excellent condition. The polished steel and black filled hour and minute hands are in perfect shape. The crystal has the Omega logo. Being a monocoque case I haven't been able to open this up to take pictures of the automatic cal 565 movement as I am technically illiterate and unable to do so. It is winding, setting and running very well. The quick set date functions perfectly. The time keeping is very good although I haven't had it serviced whilst in my ownership. Selling this one head only at €595 net to me which will include worldwide Track & Trace shipping. Payment by bank transfer or Pay Pal for well established forum members only. Any questions?...Just ask