Important Modern & Vintage Timepieces

Geneva, Mar 15, 2015

LOT 314

IWC Jumbo INGENIEUR AUTOMATIC DIAMONDS & YELLOW GOLD International Watch Co., Schaffhausen, "Ingénieur", movement No. 2149389, case No. 2259380, Ref. 9503. Made in 1982. Fine and very rare, heavy 18K yellow gold tonneau-shaped, center- seconds, water-resistant, diamond-set wristwatch set with a total of 333 diamonds, instantaneous date and an integral 18K yellow gold and diamond-set IWC link bracelet by Gay Freres with deployant clasp. Accompanied by an IWC box.

CHF 12,000 - 18,000

HKD 100,000 - 150,000 / USD 13,000 - 19,500

Sold: CHF 15,000

Three-body, solid, polished and brushed, wide flat diamond-set bezel with 35 diamonds, the shoulders set with a further 12 diamonds, screw-down case back and crown, antimagnetic dust cap, sapphire crystal. Matte gold with applied luminous yellow gold baton indexes, outer minute/seconds divisions, aperture for the date. Luminous yellow gold baton hands. Cal. C. 8541 B, rhodium-plated and oeil-de-perdrix decoration, 28 jewels, straight-line lever escapement, monometallic balance adjusted to five positions, shock absorber, self-compensating flat balance-spring, micrometer regulator.


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Grading System
Grade: AAA

Excellent
Case: 2

Very good
Movement: 2*

Very good

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

Good

HANDS Original

Notes

Dial, case and movement signed. DIAM. 40 mm. THICKNESS 12 mm. Approx overall length 195 mm.plus 2 links. The IWC Ingenieur SL Automatic was produced in less than 600 examples between 1976-1984. Examples entirely cased in 18K yellow gold, such as the present lot, were only produced for two years, making them amongst the most sought after watches from the Ingenieur family.