Robust construction, high pressure resistance, easy readability and innovative technical functionality are the key features of the Aquatimer watches that IWC has been designing since 1967. These watches are for professional and amateur divers alike. The Aquatimer Automatic diving watch is water-resistant to 30 bar and features a 42-millimetre case made of corrosion-resistant stainless steel. The diving indications are engraved on the blue dial with luminous material to ensure maximum readability during diving. Inside the case, marking the passage of time is the IWC manufacture calibre 32111, which features a self-winding system and a 120-hour power reserve. The outer-inner rotating bezel combines safety and ease of use. The clutch mechanism transmits the rotation of the outer bezel to the inner bezel. The SaveDive system ensures that the inner ring displaying the dive time always rotates counter-clockwise. For this reason, even in the event of accidental misalignment, the diving time will not be extended and the diver's safety will be guaranteed at all times. Thanks to IWC's quick-change system, the blue rubber strap