Important Modern & Vintage Timepieces...
Geneva, Nov 10, 2019
LOT 92
IWC, REF. 3527, GST DEEP ONE, TITANIUM
A fine and rare, self-winding, titanium dive watch with mechanical depth indicator
Brand IWC
Model Gst- Deep One
Reference 3527
Year Sold in July 2002
Calibre 8914
Case No. 2825636
Bracelet Titanium IWC bracelet with deployant clasp, approx. overall length 165 mm
Diameter 43 mm
Signature Dial, Case and Movement
Accessories Original fitted box, warranty card, instruction booklet, spare velcro strap, pump and setting pins, hang tag
CHF 8,000 - 12,000
HKD 64,000 - 96,000 / USD 8,000 - 12,000
Sold: CHF 10,000
| Grading System | |
|---|---|
Grade: AAA |
Excellent |
Case: 2-8 |
Very good Slightly scratched |
Movement: 2* |
Very good Overhaul recommended, at buyer's expense |
Dial: 2-01 |
Very good HANDS Original |
Notes
The IWC Deep One, introduced in 1999, was the first 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.