I have always liked the Cartier Rotonde Jour et Nuit (day and night), a model from the discontinued CPCP series. When the model was changed into a tonneau shape about three years ago, I tried to bid for the rotonde version (albeit unsuccessfully) in a 2008 auction.
The same piece came up in a recent auction in Hong Kong and I decided to go for it...and....I was second time lucky
Here are the specifications of the watch:
Black hand-sewn full grain alligator strap
Guilloche silvered dial and central rose mortif
Day and Night complications with retrograde minutes
Circular-grained crown set with a sapphire cabochon
Rose gold adjustable deployment buckle
Manual winding
Scratch-resistant sapphire crystal
Transparent case back
Water resistant at 30 meters
42mm diameter
Without further ado, allow me to post some gorgeous pictures (IMO), taken by my friend Ogygia:
The watch -


The movement -


I must admit that it took me some time to get used to reading the time on the dial - not very practical, isn't it? But the beautifully engraved disc is just too hard to resist...
Hope you enjoy this piece as much as I do
Sam