18ct yellow gold, 27.5 mm Cartier tank solo quartz wristwatch. Model reference W5200004. 18ct yellow gold case, 34 mm x 27 mm with stainless steel case back. Silver opaline dial with black Roman numerals and sword shaped blued steel hands. Secret Cartier signature at VII. Sapphire crystal. Cabochon spinel synthetic sapphire set crown. Black leather strap with 18ct yellow gold Cartier pin buckle. Comes together with Cartier box and warranty card dated 2019. In working order,