The Check out is beautiful but large, using the shape from the CK 2998 Speedmaster and turning it right into a 45mm vast and 17.37mm thick beast of the view balanced out by a lovely 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/