The case measures 20 mm across by 28.9 mm long. (0.8 inch across by 1.1 inch long)
The case is very well made and is quite heavy.
As pictured here with strap and an 18K yellow gold deployant buckle it weighs 33.5 grams.
It is made out of a solid piece of gold with machined out space for the movement and case back.
Case back is held in place by four 18K gold screws.
White dial with black Roman numerals is original and in very good condition.
The case is in very good condition as is the crystal and the original crown set with the faceted blue stone.
The watch was serviced by Cartier in 1996 and 1999 as per Cartier service certificate and is running fine.
The original Cartier black alligator band is used but in very good condition.
The band is attached to the case with a gold screw on each side.
The 18K solid gold deployant buckle is also original Cartier.
The watch with current strap will fit a 6.5 inch wrist.
New Cartier band may be ordered from a Cartier boutique.