Automatic - Rare Vintage - "Spider Dial" A distinct icon of 1980s luxury: the Cartier Santos Octagon, reference 0906. While the Santos is world-famous for its square case, the Octagon variant offers a softer, more avant-garde geometric look that remains purely Cartier. This is the Small Model (SM), featuring a stainless steel case topped with a solid 18k white gold octagonal bezel secured by eight functional screws. Unlike many smaller Cartier watches of the era, the 0906 is powered by a Swiss automatic (self-winding) movement, making it a favorite among purists who prefer mechanical horology. This timepiece is in good vintage condition, showing light signs of age consistent with careful use over the decades. The primary characteristic to note is the presence of cracks on the white lacquer dial. These fine "spider" cracks are typical for Cartier dials from this production period and are often appreciated as a sign of authenticity and vintage soul. The watch is fitted with the genuine integrated bracelet. Highlights for Collectors: • Octagonal Geometry: A rare and stylish departure from the traditional square Santos, offering a unique profile on the wrist. • Automatic Movement: Houses a reliable Swiss automatic caliber (Cal. 077), a significant upgrade over the more common quartz versions. • "Spider Dial" Character: The natural aging of the lacquer has created a unique pattern of fine cracks, giving the watch an unmistakable vintage "patina." • Blue Cabochon Crown: Features the signature Cartier octagonal crown set with a blue synthetic spinel cabochon. Technical Specifications: • Brand: Cartier • Model: Santos Octagon SM • Reference: 0906 • Year: circa 1980s • Movement: Automatic (Self-winding) • Case Diameter: 24mm