Cartier Santos Octagon watch Approx. 25x31mm octagonal case 18karat yellow gold case with screw bezel White dial with Roman markers Signature logo text at 12 o'clock Sword hands; sweep seconds Threehand automatic movement Screwdown case back Sapphire crystal window 18karat yellow gold Cartier bracelet and foldover clasp Ref #0906 Serial #00832 Circa 1980s Wipe clean NM watch box and certificate of authenticity are included with every Vintage Watch purchase. Made in Switzerland