Yes, fully manual. The reason it's so fancy is because it is very, very accurate for a mechanical watch.
An interesting bit of history (perhaps too much detail though) :
http://www.gregsteer.net/IWC/Mark_11/mark11a-en.pdf
@rodabod started
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Yes, fully manual. The reason it's so fancy is because it is very, very accurate for a mechanical watch.
An interesting bit of history (perhaps too much detail though) :
http://www.gregsteer.net/IWC/Mark_11/mark11a-en.pdf