Important Modern and Vintage Timepieces

New York, Sep 14, 2011

LOT 155

IWC - REF. 3527 - TITANIUM - GST DEEP ONE International Watch Co., Schaffhausen, ?GST Deep One, Automatic,? case No. 2771304, Ref. 3527. Made circa 2000. Very fine and rare, self-winding, water-resistant to 100 m, titanium diver's wristwatch with date, 3 crowns, depth gauge, length of dive indicator on a rubber strap and a steel IWC buckle. Accompanied by a fitted box, certificate, instruction booklet, depth gauge, titanium link bracelet, and a spare straps with tool.

USD 10,000 - 15,000

CHF 8,000 - 12,000 / EUR 7,000 - 11,000

Sold: USD 13,750

C. Two-body, brushed, screwed-down case back and crown, the crown at 2 adjusts the rotating inner bezel, the one at 4 resets, sapphire crystal. D. Black with luminous baton indexes, rotating ring for the diving time display with yellow 15-minute section, subsidiary seconds dial, aperture for the date. Luminous steel baton hands. M. Cal. 8914, rhodium-plated, fausses cotes decoration, 40 jewels, straight-line lever escapement, monometallic balance adjusted to 5 positions, shock absorber, self-compensating fl at balance spring, micrometer regulator. Dial, case and movement signed. Diam. 43 mm. Thickness 15 mm.


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Grading System
Grade: AAA

Excellent
Case: 2

Very good
Movement: 2*

Very good

Overhaul recommended, at buyer's expense
Dial: 1-01

As new

HANDS Original

Notes

IWC Deep One The IWC Deep One, introduced in 1999, was the fi rst wristwatch equipped with a mechanical depth gauge that showed depth up to 45 meters. The mechanical depth system is a Bourdon tube which acts as a pressure-sensing element. When water enters the coil tube, it causes the tube to rigidify. The pressure is then indicated by a depth gauge hand in white. A yellow hand indicates the greatest depth during a dive. This system was independent from the watch movement, a JLC 891. A pump was furnished with the watch to test the pressure gauge. The Deep one was made for a very short period due to its high cost of fabrication and relatively small market. Only a few IWC Deep One were sold and the watch was rapidly discontinued. Today, the watch has achieved cult status among collectors