Rolex. A fine and rare stainless steel triple calendar chronograph wristwatch with braceletSigned Rolex, Oyster Chronograph, Antimagnetic, case no. 576376, ref. 6236, circa 1960Cal. 72C, with nickel-finished lever movement, 17 jewels, the silvered dial with applied faceted numerals, luminous hands, outer date ring with blue Arabic numerals, central arrow date hand, two windows for day and month, three subsidiary engine-turned dials indicating constant seconds, 30 minutes and 12 hours registers, in tonneau-shaped water-resistant-type case with screw back and screw down crown, two round chronograph buttons in the band, together with a stainless steel Rolex Oyster bracelet, case, dial and movement signed36 mm. diam.