#Watches A new jewel shines to the surface of the sea: for the first time, the Yacht-Learn 42 is accessible in yellow gold – an impressed and first refinement towards the emblematic sailing timepiece that in no way alters its program. Oyster Perpetual Datejust 31 The metal case for this https://www.watchesworld.com/understanding-the-complex-world-of-chronometers/