Brand: Cartier Tank American SM Watch Item name (English): Tank American Model #: W26015K2 Material: 18K Yellow Gold Case Material: Yellow Gold Strap Material: Yellow Gold Weight: 83.2 g Case diameter (H): 34 mm (1.34 in) Case diameter (W): 19 mm (0.75 in) Arm circumference (cm): 17 cm (6.69 in) Dial: White date: May 2011 Accessories: Box, repair book details: In-house 3 month Maintenance: Polished Item Description: The height-length case has an elegant and beautiful curve, and the case design is a harmonious combination of straight lines and curves. It is not only beautiful, but the hair lines on the top and bottom tighten the entire watch, giving it a superlative elegance.