Power reserve:?42 h
This model is a symbol for the rebirth of IWC in the 80?s.
When this model was introduced in 1985 they choosed this name because the shape of the case was based on a sketch of four concentric circles by Leonardo Da Vinci.
The case of the four concentric circles is replaced for a elegant tonneau shaped case.
Reference 7722.214.171.1249 has a stainless steel case with black PVD coating and a rubber strap.