The new Aquatimer IWC houses a mechanism of internal and external rotating bezel with SafeDive IWC system that prevents any unintentional adjustment of the dive time. The tightness of the watch is now guaranteed up to 30 bar against 12 for the previous model.
Its look is the same than the original look of the first Aquatimer 1967: a modernized look but does not sacrifice the elegance of the model. The diameter of the casing is the same  ( 44 mm ) , despite the presence of a clutch protection system to “9:00”.
  The new Aquatimer Chronograph is available with a black or silver dial  according to individual taste with a rubber strap or steel end.