====== IWC Aquatimer ======
{{wst>image_cr|IWC|Aquatimer 1967|The original\\ **Aquatimer 1967**\\ with black dial and Tropical Band}}

**Aquatimer** is a [[dive watch]] series by [[IWC]].

Dive watch from the 1970s with [[automatic]] winding and [[date display]].

The Aquatimer models have an internal rotating [[bezel]], which is operated by a second [[crown]] at the "4". With the [[chronograph]] models this [[crown]] takes over a technically complex double function Chrono reset by pressing and setting of the [[bezel]] by turning the crown.


<WRAP ud ud_mod>

**Ref. 1812 or 812AD&lt;br /&gt;**
  * from 1966 to 1982&lt;br /&gt;
  * Calibre 8541&lt;br /&gt;
  * [[waterproof]] to 20 atm&lt;br /&gt;

**Ref. 1816 or 816AD&lt;br /&gt;**
  * from 1968 to 1982&lt;br /&gt;
  * Calibre 8541 B&lt;br /&gt;
  * cushion-shaped case&lt;br /&gt;
  * [[waterproof]] to 30 atm&lt;br /&gt;

**Ref. 1822&lt;br /&gt;**
  * from 1978 to 1982&lt;br /&gt;
  * the only visible difference from Ref. 1816 The missing caseback embossing &lt;br /&gt;
  * (the engraved characteristic submarine).

**Ref. 3538&lt;br /&gt;**
  * from 2004&lt;br /&gt;
  * Aquatimer as three-hand watch in [[titanium]]&lt;br /&gt;
  * [[waterproof]] to 200 atm&lt;br /&gt;

**Ref. 3548&lt;br /&gt;**
  * from 2004&lt;br /&gt;
  * Aquatimer als three-hand watch in steel&lt;br /&gt;
  * [[waterproof]] to 100 atm&lt;br /&gt;

**Ref. 3719&lt;br /&gt;**
  * ab 2004&lt;br /&gt;
  * Aquatimer [[Chronograph]] in steel and [[titanium]]&lt;br /&gt;
  * [[waterproof]] to 12 atm&lt;br /&gt;

**Ref. 3723&lt;br /&gt;**
  * from 2004&lt;br /&gt;
  * Aquatimer minutes [[split-seconds]] [[chronograph]] in [[titanium]]&lt;br /&gt;
  * [[waterproof]] to 12 atm&lt;br /&gt;

**Ref. 3548&lt;br /&gt;**
  * from 2004&lt;br /&gt;
  * Cousteau edition in steel&lt;br /&gt;
  * Dial dark blue with orange elements&lt;br /&gt;
  * caseback with engraved logo of the Alcyone (research vessel of the Cousteau Society)&lt;br /&gt;
  * limited edition - 1953 pieces
</WRAP>
===== Literature =====
  *[[IWC-Uhren. Die "Schaffhauser" and ihre Geschichte]]; Author [[Reinhard Meis]]; ISBN 3853782531
  *IWC, International Watch Co. Schaffhausen, Engl. ed.; Authors Hans-F. Tölke, Jürgen King; ISBN 3906500152
  *Armbanduhren-Spezial IWC-Geschichte, Design, Technik; Author Jörg M. Mehltretter; ISBN 3898800458
  *IWC - Die Noblen aus der Schweiz. Handbuch für den Uhrensammler; Author Jörg M. Mehltretter; ISBN 3898802272
  *IWC, International Watch Co. Schaffhausen, Luxusausg. Engl. Ed.; Authors Hans-F. Tölke, Jürgen King ISBN 3906500160

===== Weblinks =====
  *[[http://www.iwc.com/en/|IWC]]


{{tag>Watch_models IWC_models}}