Here is an Omega Speedmaster Professional Mark II dating to 1970 that displays overall great condition. This gold-plated case is in very good overall condition and measures 41x45mm and 14mm thick. The crystal is an original sapphire crystal and the original winding crown is present. Notice the red inner tachymeter bezel and pristine gold dial with baton markers and hands. This combination really pops on the wrist. The manual winding caliber 861 chronograph movement was just cleaned and is accurate.