Cartier is one of the very few brands to offer different time displays for the Perpetual Calendar watches of its catalogue! Proof is here: Open dial with peripheral date: Similar display... with a chronograph: Circular display! Fx...
FrX, Thanks for showing the three Cartier displays of perpetual calendar. I choose the Tortue...surprising as I don't like fenestrated dials. But this one is readable. Regards, MTF