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IWC Aquatimer Split Minute Chronograph

Posted by wristwatch on July 8, 2007

Experienced divers had drawn IWC’s attention to a problem they faced and the company’s engineers, who love nothing more than a challenge, set about solving it. The result of their efforts can be found in the Aquatimer Split Minute Chronograph, which features a flyback mechanism that works independently of the chronograph. This additional split-minute function is the only one of its kind in the world. It can be switched on and off at any time under water and enables the user to time another action * apart from overall dive time * such as an ascent or the length of a decompression stop. A rugged little rocker switch on the left-hand side of the case makes the mechanism easy to activate. The inside, too, is packed with top-quality features that include a mechanical, self-winding chronograph with aggregate timing up to twelve hours and the characteristic rotating inner bezel. This is adjusted using the chronograph reset button, which also functions as a crown. The impressive flagship of the Aquatimer fleet, with its imposing 44-mm diameter case, is available exclusively in titanium.

* Calibre:  79470
* Vibrations:  28 800/h / 4 Hz
* Jewels:  30
* Power reserve:  44 h
* Winding:  automatic
* Mechanical chronograph movement
* Self-winding
* Small seconds hand with stop function
* Date display
* Second minute hand for minute memory function
* Screw-in crown
* Mechanical rotating inner bezel
* Luminescent elements on hands, dial and rotating inner bezel
* Sapphire glass, antireflective on both sides
* Water-resistant 120 m
* IWC metal bracelet system
* Push-button release safety clasp
* Glass:  sapphire, convex, antireflective
* Crown:  screwed
* Water-resistant:  12 bar (120 m)
* Case diameter:  44 mm
* Case height:  16.3 mm
* Weight: 153g

* Reference IW372301 The Aquatimer Split Minute Chronograph in titanium with titanium bracelet
* Reference IW372304 The Aquatimer Split Minute Chronograph in titanium with black rubber strap


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