The Observe is beautiful but substantial, using The form on the CK 2998 Speedmaster and turning it into a 45mm large and 17.37mm thick beast of the observe well balanced out by a lovely aventurine dial and bezel and about the Sedna Gold bracelet, the Speedmaster Chrono Chime weighs a https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/