Journey to the blue side of the moon The Speedmaster is one of OMEGA’s most iconic timepieces, having been a part of all six lunar missions. Taking the spirit of exploration a step further, this "Blue Side of the Moon" takes its names from the color of the dark blue sky. The 44.25 mm chronograph features a blue ceramic case complemented by a blue ceramic bezel ring with an OMEGA Ceragold™ tachymeter scale. It is presented on a blue leather strap with a blue ceramic and ceramised titanium foldover clasp. Most vividly, the dial is blue aventurine glass and includes 18K Sedna™ gold indexes and ha