Omega Speedmaster Pro circa 1982, movement 861, real or fake?
I recently purchased a Speedy Pro off ebay, and am wondering if it's authentic. This is mainly because of 2 concerns I have after receiving the watch. 1) The top chronograph button seems to be a little high (with respect to the 300-mark of the tachymetre), and 2) The Tachymetre is spelt without an apostrophe to the first e.
Please kindly check for me! Thank you for your time.