Omega Seamaster Cosmic Automatic Setting Date and Time Setting data and time on this vintage Omega Seamaster Cosmic automatic timepiece. This is a two piece stem, so set the date carefully pull out the crown to position 2, to set the time carefully pull out the crown to position 1 and rotate clockwise. After setting the time and date return the crown to natural position. Very important, DO NOT attempt to set the time on your wrist as that may cause damage to the stem.Manhattan Time Service is an

💚So excited to be adding this amazing piece to stock💚 Omega Seamaster Cosmic model 166.129, circa 1977. Stainless steel & Gold case with unique 'Cosmic 2000' waterproof-designed case, where the outer bezel frame and movement are housed in inner sealed tub. The watch is in Great condition with the engraved Seamaster logo on the back of the case. The talking pont here is the amazing Original Green almost Emerald colour Omega dial with some light ageing, and that sought after crazy pave spider we