Sporting a vibrant blue dial, the Oris Big Crown Calibre 473 is this Blue Dial Monday pick. This Big Crown’s eye-catching dial is housed in a 38 mm stainless steel case. However, with this Big Crown, it’s not only the dial that takes centre stage. This variant is equipped with the luxury watchmaker’s new hand-wound calibre, the 473. Oris’ tenth in-house movement in a decade, the Calibre 473 offers a generous power reserve of five days.