Authentic Tiffany & Co./Schlumberger 18k White Gold Watch has a black leather adjustable band. Watch was designed by Jean Schlumberger, a prominent designer for Tiffany & Co. His designs are still sold by Tiffany & Co. even today, years after his death. There is a hidden way to fasten the watch; refer to video. Face of watch has Tiffany & Co. Schlumberger Swiss. Numbers are represented as 18k White Gold lines; watch hands are also 18k White Gold. Small scratches on case, strap. GUC