Omega Speedmaster Master Chronometer Chronograph Moonphase This new timepiece is a representation of the moon. The metallic crystal disc is microstructured to obtain a high resolution image of the moon. One can see in fine detail the first footprint left by Neil Armstrong on the “Sea of Tranquility”. Bracelet (stainless steel); strap (leather); clasp (stainless steel) and watch diameter [44.25 mm].