For decades, the Calatrava – the prototype of the classic round wristwatch, including its Officer’s-
style variations with dust covers over the case back – has ranked among the most iconic creations
of Patek Philippe. Uniting the key characteristics of this watch family, the new Calatrava Ref. 5227
now features a display back protected with a separate dust cover. The special twist: The entire
hinge is on the inside of the cover, making it invisible even to the connoisseur…