Here's an Omega Speedmaster Moon Watch with the highly-sought straight-writing back.
This one is from around 1972, just after the famous 1969 moon walk. This model was produced for a few years with the straight back writing before Omega went to the more common circular writing on the back. Serial number: 32 million.
Comes on a correct 1071 stainless steel link bracelet, which fits a 7.5 inch wrist.
Under the hood of the model 145.022-69 is the workhorse 861 manual movement, keeping excellent time. The chrono works fine, resets perfectly.