2) Omega website lists the Speedmaster Reduced as having a 35.5mm case size, when it's actually about 39mm. Here is Omega's official explanation: "At the time the Speedmaster Reduced was launched the diameter was measured between 12 and 6 o'clock on the case body (without the bezel/tachymeter scale). This was common practice and we kept the dimension (35.5 mm) even for new Speedmaster Reduced models to avoid any confusion with the former versions." (info from John Rochowicz, at WUS). So, the correct sizes are the ones listed: 39 and 42mm.