, Auktion, 15.11.2016
 The Big Pilot’s Watch Annual Calendar Edition “Le Petit Prince” (Ref. IW502704) is the first and so far the only watch in the history of IWC with a blue movement. .The manufacturing process required to make it has taken around 1.5 years to develop and refine. To give the IWC-manufactured 52850 calibre its striking blue colour, the plates and bridges have been coated with various metal oxides. (PPR/IWC)
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