Chopard Watch Happy Sport 278559-4001. Launched in 1993, the Happy Sport model is the first watch to combine diamonds with a stainless steel case. To this day, it remains one of the most iconic and desirable models in the industry. Explore the full range of luxury floating diamond watches for women: gold, white and rose gold diamond watches and stainless steel watches. And discover our quartz luxury watches, automatic watches or prestigious moon-phase watches.