The Observe is lovely but substantial, using the shape from the CK 2998 Speedmaster and turning it right into a 45mm broad and seventeen.37mm thick beast of a watch well balanced out by a good looking aventurine dial and bezel and within the Sedna Gold bracelet, the Speedmaster Chrono Chime https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/