Cartier Tank Francaise Chrongraph Yellow Gold Quartz Mens Watch W50005R2. Quartz movement. Rectangular 18K yellow gold 36.0 x 28.0 mm case with two pushers for chronograph function. Octagonal crown set with a blue sapphire cabochon. . Scratch resistant sapphire crystal. Silvered grained dial with painted black radial Roman numeral hour markers. Outer minute and 1/5 second markers. Sword-shaped blued hands. Secret Cartier signature at X. Three subdials -- radial date subdial at 12 o'clock, 30 minute chronograph subdial at 4 o'clock, and 12 hour chronograph subdial at 8 o'clock. 18K yellow gold bracelet with hidden butterfly clasp. Fits a 7.5" wrist.