Rolex. An Attractive Stainless Steel Chronograph Wristwatch with Bracelet and Multi-Tone Brown Subsidiary DialsSigned Rolex, Cosmograph Daytona, Ref. 6239, Case No. 1'197'167, Circa 1964Cal. 722 mechanical movement, 17 jewels, silvered brushed dial, applied baton numerals with luminous accents, luminous hands, three engine-turned brown-colored subsidiary dials for 12 hour and 30 minute registers and constant seconds, tonneau-shaped water-resistant-type case, bezel calibrated for 300 units, two round chronograph buttons in the band, screw-down crown, screw back, stainless steel Rolex Oyster bracelet and deployant clasp, case, dial, and movement signed36mm diam.