The Mondani Collection of Rolex Wrist...

Geneva, May 14, 2006

LOT 295

Ref. 5100 White Gold ?Quartz? Rolex, ?Quartz?, Ref. 5100. Case No. 800. Made in 1972. Very fine and rare, tonneau-shaped, center seconds, 18K white gold gentleman's quartz wristwatch with date and an 18K white gold Rolex bracelet with concealed deployant clasp.

CHF 10,000 - 15,000

EUR 6,500 - 10,000 / USD 8,000 - 12,000

Sold: CHF 25,960

C. Three-body, polished and brushed, faceted gold bezel and crown, angled hooded lugs, sapphire crystal with "cyclops" lens. D. Satiné silver with applied white gold baton indexes and luminous dots, baton minute markers and fifth of a second divisions, aperture for the date. Luminous white gold "baton" hands. M. Cal. Beta 21, 13 jewels, frequency of the quartz oscillator: 8192 Hz, reduced to 256 Hz by the frequency reducer. Dial, case and movement signed. Diam. 39 mm. Thickness 13 mm.


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Grading System
Grade: AAA

Excellent
Case: 3-15

Good

Slightly rusted
Movement: 3*

Good

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

Good

HANDS Original

Notes

Developed and finished after one year of research, the caliber Beta 21 (29 x 24,3 mm.) was ready for production in 1969 and was presented at the Basel Fair in 1970. This watch, part of the Mondani Collection, is not illustrated in the Mondani Rolex book.