This is the most simple and practical perpetual calendar GMT ever produced. All adjustments are made only by the crown. Functional and aesthetic just like what Rolf liked to offer to lovers of Ulysse Nardin and fine watchmaking
This watch and especially its caliber are exceptional. With Rolf, Ludwig,Raimondo Brenni the Designer and my staff of the dressing technical office, we worked with passion and desire to offer these models which made the reputation of Ulysse Nardin. You have hit a model that made me very proud.