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On Hold: IWC. 'Deep One' super rare, Divers depth guage watch

NOW ON HOLD PENDING FUNDS

Thanks to all that enquired.

I have for sale an extremely rare titanium IWC Deep One GST 3527.

It is sold as a full set which includes the IWC integral titanium link bracelet and the IWC Velcro strap, together with inner and outer boxes, testing equipment (to check the depth gauge), registration cards and paperwork.

The whole set is in excellent, virtually unworn (and certainly unused for diving) condition.
This is an exceptional complication in a dive watch and historically significant (please see the attached articles).

Whilst this is a substantial watch – 43mm without crowns - it is remarkably light because of its titanium construction and is very comfortable to wear.

This is a very scarce watch, imposing on the wrist with an icon with important history in diving watch development.

To anyone that has tried to find a 'Deep One' for sale it is clear that they are very few and far between.
There is currently only one for sale that I know of, and it's listed at almost UK £11k.
I'd like UK £ 9500 (inc. insured shipping) for this exceptional watch.

Please see below a comprehensive description, some links to articles and pictures of the actual watch.
Please forgive the poor photography – I can assure you the watch looks far better in real life than my photography indicates.

Description.
The watch has a scratch resistant sapphire crystal and three crowns.
The crown at 2 o'clock ‘click’ adjusts the matte black inner rotating bezel with luminous yellow Arabic numeral markers and 15-minute dive warning, it also presses in to reset the maximum depth attained hand.
The crown at 4 o'clock resets the depth gauge that measures the current depth. This crown is also perforated to fit onto the end of an external pressure tube (included) for testing the depth measuring mechanism that is pre-set to an environmental pressure of 1013.25 millibars at 15 degrees.
The centre crown winds and sets the watch.(it has a fish symbol signifying water-resistance to 100 meters/330 feet).

There is a screw-down solid case back engraved in high relief with "INTERNATIONAL WATCH CO. – SCHAFFHAUSEN," a serial number, and the Deep One whirling logo is in the center.
The 43mm diameter solid case, straight lugs, bracelet, and flat bezel are all brushed.

The dial is black with luminous baton hour markers around a minute scale. It has a luminous white baton steel hour hand, a luminous yellow steel minute hand, a center steel luminous hand with a skeletonized broad arrow tip in white that measures current depth and finally a center steel hand with a luminous skeletonized yellow broad arrow tip that indicates the greatest depth during a dive. These show the meters on a perimeter depth scale with luminous yellow square meter markers and white Arabic numerals every 10 meters to 45.
There is a date aperture window at 3 o'clock, and a luminous running seconds subsidiary dial at the 6 o'clock position.

It has a 38-hour power reserve at full wind, and the 14.5mm thick case, dial, and movement are all signed.

The IWC Deep One GST 3527 has a mechanical automatic self-winding IWC caliber 8914 movement (based on a Jaeger-LeCoultre 891 engine). It's rhodium-plated, with fausses cotes embellishment. It is constructed with 40 jewels, a shock absorber device, and a straight-line lever escapement. It includes a monometallic balance that's adjusted to 5 positions, a self-compensating flat balance spring, and a micrometer regulator. The mechanism oscillates at a frequency of 28,800 vph (4Hz).

The IWC Deep One GST 3527 was introduced in 1999, the first diver's watch with a mechanical depth gauge up to 45 meters.
The mechanical depth system is a coiled Bourdon tube that is a pressure-sensing element. As water enters the tube, it goes rigid.
This system is independent from the watch movement.

Only about 500 examples were produced between 1999 and 2002 and substantially fewer went to market.

https://www.hodinkee.com/articles/your-official-hurricane-irene-survival-watch-the-iwc-deep-on

https://www.youtube.com/watch?v=9tYmeVkq8Ck

https://www.revolution.watch/a-giant-leap-in-dive-watch-revolution-the-gst-deep-one/

http://m.iwatch365.com/thread-16073791-1-1.html













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