5496P-015

I know … you are thinking “who is he kidding”? This certainly is not a mystery watch. But to me it certainly is a mystery why this watch is relatively so unpopular. Objectively: 39.5 mm, platinum, retrograde PC, 2 backs, platinum deployant clasp, winding

Note that this thread includes only the "simple" retrograde perpetual calendars, meaning those with no other complications. Therefore, the references with a minute repeater and a tourbillon (5013, 5016, 5213, 5216, 5217, 5316) are deliberately lefts aside