Important Collectors Watches, Pocket ...

Geneva, May 10, 2009

LOT 27

Bubble Back Rolex, "Oyster Perpetual, Officially Certified Chronometer", case No. 666639, Ref. 5050. Made in 1949. Fine and rare, tonneau-shaped, center-seconds, self-winding, water resistant, 18K pink gold wristwatch with an 18K yellow gold Rolex buckle.

CHF 7,000 - 9,000

USD 6,000 - 7,800 / EUR 4,600 - 6,000

Sold: CHF 8,400

C. Two-body, solid, polished and brushed, screwed-down case back and crown, half-hooded lugs, concave bezel. D. Black with applied yellow gold faceted rectangular and baton indexes, outer dot division. Luminous pink gold alpha hands. M. Cal. 620, 9 ¾''', rhodium-plated, 18 jewels, straight line lever escapement, Superbalance timed to 6 positions, self-compensating Breguet balance spring, micrometer regulator. Dial, case and movement signed. Diam. 32 mm. Thickness 13 mm.


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Grading System
Grade: AA

Very good
Case: 3

Good
Movement: 3*

Good

Overhaul recommended, at buyer's expense
Dial: 3-6-06

Good

Slightly oxidized

HANDS Partially replaced

Notes

References 6050 and 5050 are identical except that Ref. 6050 has a ?Super-Oyster? crown and Ref. 5050 has a traditional Oyster crown. The caliber 620 was created in 1936; it was in regular production from 1940 to 1951. This type of case is called ?Bubble-Back? by Englishspeaking collectors. The Italian collectors call the watch ?ovetto? due to the olive-like outlines of the case.