The IWC Aquatimer Chrono-Automatic IW371918, part of the 2004 collection, offers a 44-hour power reserve. IWC has a heritage of professional diving timepieces dating back to the 1967 original, including notable models like the Ocean 2000 and GST Deep One.
Movement Type
Automatic Chronograph
Caliber
79320Jewels
31
Reserve
44
Frequency
28800
Hands
Small Seconds
Shape
Round
Material
Titanium
Glass
Sapphire
Thickness
13.40 mm
Diameter
42.00 mm
Water Resistance
120.00 m
Dial Color
Black
Material
Rubber