24+ Omega Speedmaster Mark Ii Red Orange Dial US. It featured the same shuttle cam operated chronograph caliber 861 which had become standard fare for the omega. The speedmaster mark ii was launched in 1969 under the reference number 145.014.
The glas is damaged as visible on the pictures.
The black dialed speedmaster being the most common of the common. Omega speedmaster mark ii, full set, unpolished, orange It featured the same shuttle cam operated chronograph caliber 861 which had become standard fare for the omega. The black dial version is mostly monochromatic except for some accents from the green lume and has white hour.