Important Wristwatches, Watches & Clocks
Geneva, Hotel Des Bergues, Oct 17, 1992
Rolex Oyster Perpetual Superlative Chronometer Officially Certified "Cosmograph Daytona", Ref. 16520, second series of the present production. Fine self winding, stainless steel gentleman's wristwatch with round button chronograph, register and tachometer, with 50 hours power reserve, with stainless steel Oyster bracelet and fitted box.
C. polished, satined, screwed back, buttons and crown, waterproof at 100 meters, tachometer graduation on the bezel to 400 units per hour, sapphire crystal. D. bicolour white and black with radiumed indexes + auxiliary dials for the seconds, the 12 hours and 30 minutes registers. " Bâton" radiumed steel hands. M. 13 "' Cal. 4030 rhodiumed, 31 jewels, lever escapement, Superbalance balance adjusted to 6 positions, antishock system, selfcompensating Breguet balance-spring, micrometer regulator. Dial, case and movement signed. In excellent condition. Diam. 39 mm.