The Mondani Collection of Rolex Wrist...

Geneva, May 14, 2006

LOT 183

Ref. 16660 ?Sea-Dweller 4000? Rolex, ?Oyster Perpetual Date, Sea Dweller 4000ft=1220m, Superlative Chronometer Officially Certified?, Ref. 16660. Case No. 8712965. Made in 1986. Fine and rare, center seconds, water-resistant, stainless steel gentleman's wristwatch with second generation gasescape valve, date and stainless steel Oyster ?Fliplock? bracelet.

CHF 6,000 - 8,000

EUR 4,000 - 5,000 / USD 4,700 - 6,300

Sold: CHF 8,260

C. Three-body, polished and brushed, screwed-down engraved case back, graduated uni-directional revolving bezel for the decompression times, "Triplock" windingcrown protected by the "Crown-Guard", gas-escape valve at 9, sapphire crystal. D. Black with luminous steel round, triangular and bâton indexes, outer minute/seconds divisions, aperture for the date. Luminous steel "Skeleton" hands. M. Cal. 3035, rhodium plated, 27- jewels, straight line lever escapement, free-sprung monometallic balance, shock-absorber, self-compensating Breguet balance-spring. Dial, case and movement signed. Diam. 40 mm. Height 15 mm.


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Grading System
Grade: AA

Very good
Case: 3

Good
Movement: 2

Very good
Dial: 2-01

Very good

HANDS Original

Notes

Reference 16600/16660 replaced reference 1665 in 1986. The primary differences are the 1 mm thick sapphire crystal, second generation gas-escape valve, and unidirectional revolving bezel. This watch is illustrated in ?Rolex, Collecting Wristwatches?, by Osvaldo Patrizzi, 2001 Edition, p 319.