The Corum Bubble was first released in 2000 and was designed to be a fun and playful watch during the time of Severin Wunderman. Its most notable feature is the large, bubble-shaped sapphire crystal, which is said to have drawn inspiration from the classic Rolex Deep Sea watch. After being absent for a while, the Bubble made a comeback at the 2015 BaselWorld event. In 2016, we were introduced to the L295/03047 Bubble, sporting a beautiful blue mother-of-pearl dial and a matching strap.