Corum Bubble Paiste & Bubble Op Art Watches Corum by wholesalewatches - December 28, 20170 The Corum Golden Bridge Rectangle case measures 29.5mm wide by 42.2mm tall and a mere 9.3mm thick. The detailed execution of this 18-karat gold Roman numeral constructions and rivets that encircle the motion are very cool to check at it - it feels like something King Midas would approve