Cartier Obus Quadrant Ref. A100 – Blue Enamel 18k Yellow Gold (circa 1984, Large Model)
Distinctive and highly collectible Cartier Obus Quadrant in 18k yellow gold, introduced in 1984 as part of the iconic Quadrant series.
This model is immediately recognizable by its bold square case and signature “Obus” (bullet-shaped) lugs, giving the watch a strong architectural presence. The true highlight is the exceptional bezel, featuring deep blue enamel with integrated minute track and hour markers, contrasted by the minimalist dial signed only “Cartier” and “Paris.”
The large model case measures 25 × 32 mm, offering an elegant yet substantial wrist presence, and remains in amazing overall condition.
Recently fully serviced by Cartier in 2026 (invoice €430), and accompanied by a 2-year international Cartier warranty valid until April 2028.
Fitted with its original Cartier leather strap and vermeil gold pin buckle, preserving its authentic vintage character.
Key highlights:
Large model 25 × 32 mm case in 18k yellow gold
Rare blue enamel bezel with minute track and markers
Iconic Obus (bullet-shaped) lugs
Minimalist “Cartier Paris” dial
Full Cartier service in 2026 (with invoice)
Cartier international warranty until April 2028
Original Cartier strap with vermeil gold buckle
Reference A100, introduced in 1984
A rare and striking Cartier design, blending geometric boldness with refined enamel craftsmanship—seldom seen on the market and highly sought after by collectors.
