The Observe is beautiful but significant, having the shape with the CK 2998 Speedmaster and turning it into a 45mm wide and 17.37mm thick beast of the view balanced out by a lovely aventurine dial and bezel and to the Sedna Gold bracelet, the Speedmaster Chrono Chime weighs a nuts https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/