Sometimes the most basic things in life are the most beautiful. Patek Philippe’s Calatrava 5196 does not have a chronograph, a perpetual calendar, or even a date function. Yet, it exudes the same attention to detail as the most complicated timepieces in the collection. It has the understated elegance that Patek Philippe timepieces are world-renowned for, in the purist form — as a manual wind, time only wristwatch....