The Check out is attractive but enormous, using the shape on the CK 2998 Speedmaster and turning it right into a 45mm large and 17.37mm thick beast of a watch well balanced out by a lovely aventurine dial and bezel and around the Sedna Gold bracelet, the Speedmaster Chrono Chime https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/