Important Watches and Wristwatches
St-moritz, Badrutt's Palace Hotel, Feb 25, 1990
Rolex Oyster perpetual Superlative Chronometer Officially Certified Cosmograph "Daytona" Ref. 16520, present series. Tonneau shaped, self-winding, stainless steel gentleman's wristwatch, with round button chronograph, registers and tachometer, and 50 hours power reserve.
C. polished, satined waterproof, screwed back and but-tons, tachometer graduation on the bezel to 200 units per hour, sapphire crystal. D. black with applied radiumed indexes + auxiliary dials for the seconds, the 12 hours and 30 minutes registers. "Bâton" radiumed 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 mint condition. Diam. 39 mm.