Cartier Tank Obus - 18K Yellow Gold omega The dial and crystal are

The dial and crystal are clean and well preserved

This example is especially notable for its completeness

Matching patina in both hands and hour markers

and design innovation—an extraordinary reference that transcends traditional watchmaking and flirts with high jewelry territory

Cartier Tank Obus - 18K Yellow Gold omega The dial and crystal areThe Quadrant Enamel Classic The Cartier Tank Obus is a distinct departure from the elongated rectangles typically associated with the brand. This 1980s execution, often referred to as the "Quadrant," utilizes a perfectly square 20x20mm 18k yellow gold case. What sets this specific reference apart is the bezel; rather than leaving the gold plain, Cartier inlaid it with black enamel Roman numerals. This design choice pushes the hour markers to the