The new Calatrava Officier Ref. 5153 features the Officier, a yellow gold case as rare as it is complex, created by the craftsmen of the brand’s manufacture. This timepiece bears all the hallmarks of refined classical watchmaking in the purest Patek Philippe tradition: the manufactory-made 324 Central Second calibre, Bassine-style bezel, sapphire crystal back protected by a hinged anti-dust cover, horns with visible screw attachments, a distinctive turban-shaped crown, and a finely worked opaline dial with a hand-guilloché centre and gold applique hourmarkers.