The Mondani Collection of Rolex Wrist...

Geneva, May 14, 2006

LOT 18

Ref. 6238, So-Called ?Pre-Daytona? Rolex, ?Oyster, Chronograph?, Ref. 6238. Case No. 1206508. Made in 1965. Very fine and very rare, water-resistant, stainless steel gentleman?s wristwatch with black dial, round button chronograph, registers, tachometer and a stainless steel Oyster bracelet.

CHF 50,000 - 60,000

EUR 32,000 - 40,000 / USD 40,000 - 47,000

Sold: CHF 94,400

C. Three-body, polished and brushed, screwed-down case back and crown, polished inclined bezel. D. Black with applied steel bâton indexes and luminous dots, subsidiary dials for the seconds, the 12-hour and 30-minute registers. Luminous steel "bâton" hands. M. Cal. 13??? 727, rhodium plated, 17 jewels, straight line lever escapement, monometallic balance, shock-absorber, self-compensating Breguet balance spring. Dial, case and movement signed. Diam. 36 mm. Thickness: 14 mm.


LOADING IMAGES
Click to full view
Image
Grading System
Grade:
Case: 3

Good
Movement: 3*

Good

Overhaul recommended, at buyer's expense
Dial: 3-01

Good

HANDS Original

Notes

Reference 6238 is known by collectors as the ?Pre-Daytona? and was first published in the Rolex catalogue in 1964. This reference was available in stainless steel, 14K and 18K gold, until it was removed from the Rolex catalogue in 1968. This watch is fitted with a Calibre 727 movement that is an improved version of the Calibre 722 which was fitted in the early examples of this watch. Both calibres are based on the Valjoux 72B. Movements with all three calibre numbers are found in this reference. This watch is illustrated in ?Rolex, Collecting Wristwatches?, by Osvaldo Patrizzi, 2001 Edition, p. 437.