The Vintage Cartier Tank Must, first launched in the mid 。The 1970\'s Vintage Must De Cartier Tank is a luxurious timepiece with a 18K gold electroplated case featuring a sapphire cabochon and manual wind movement. The watch boasts a classic design with Roman numeral indices and a sophisticated two-piece brown leather strap. Handmade in Switzerland during the 1970s, this unisex watch has a stylish rectangular shape with a 23mm case size and polished finish. With its solid white dial and 17 jewels, this vintage Cartier Tank is a timeless piece that exudes elegance and craftsmanship. PLEASE NOTE I had the watch serviced and cleaned and the jeweler/watch repairman replaced the spring with AFTERMARKET component ($300 for parts plus $200 labor) NOT with a Cartier part. Also the band is NOT ORIGINAL Cartier. Otherwise watch and remaining parts are Cartier authentic. The watch works great. It is in excellent condition, considering the age. I am French and this was my mom‘s watch. She purchased it in Paris. Due to medical issues I cannot wear jewelry therefore selling.