The IWC Mark XVII is a very different watch . As an evolution of the Mark 11, the Mark XVII is barely recognizable; the 11 was developed as a reliable, utilitarian military watch that could be mass produced and that catered specifically to the specifications of the British Royal Air Force. However, when the XVII is compared to the more recent Mark XII, and to later iterations including the Mark XV and XVI , the style of the contemporary watch is more in line with its predecessors
The few similarities to the Mark 11 lie in the bold quarter hours, triangle mark at 12 o’clock, similar font for the hour numerals, and a clear lean toward readability with the black and white-accented dial. However, when the XVII is compared to the XII, the focus on the luxury aspect of the watch becomes more apparent — the improved quality of the finishing, the date wheel at 3 o’clock, and the continued focus on readability remains.
I like the modern IWC Mark series,specifically, I prefer to Mark XVII. Because of its functionality and readability.