Revolution: The Evolution of the Role...

New York, Apr 17, 2008

LOT 135

Ref. 9420, Chrono Time Tudor, ?Automatic - Chrono Time,? Ref. 9420, case made by Rolex, Geneva. Made in the 1980s. Fine, self-winding, water resistant to 100 meters, stainless steel wristwatch with round button chronograph, registers, tachometer, date and a stainless steel Tudor Oyster bracelet. Accompanied by a service invoice copy dated April 11, 2007.

C. Three-body, polished and brushed, screwed-down engraved case back, steel bezel with gray insert and tachometer graduation to 500 UPH, Triplock winding crown protected by the crown guard, crystal with Cyclops lens. D. Two-tone anthracite and red with applied steel baton indexes and luminous dots, outer 1/5th seconds scale with 5 minute/second red Arabic markers, subsidiary dials for the seconds, the 30-minute and 12-hour registers, aperture for the date. Luminous black baton hands. M. Cal. T 7750, rhodium-plated, fausses cotes decoration, 25 jewels, straightline lever escapement, monometallic balance, shock absorber, self-compensating flat balance spring, micrometer regulator. Dial, case and movement signed. Diam. 40 mm. Thickness 14 mm.