Rétrograde combines the magic of a floating tourbillon with the logic of a date hand that reverts to its starting position and the power of a 7-day in-house calibre. In 2015, this exclusive timepiece is even more attractive to look at. The Portugieser Tourbillon Hand-Wound with its delicate, flying “whirlwind” will remain a source of delight to connoisseurs of precision watchmaking.http://www.iwc.com/en/news/for-connoisseurs-of-fine-watchmaking/

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