The Observe is stunning but significant, taking the shape of your CK 2998 Speedmaster and turning it into a 45mm wide and 17.37mm thick beast of a view well balanced out by a good looking aventurine dial and bezel and around the Sedna Gold bracelet, the Speedmaster Chrono Chime weighs https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/