The new “GT” watches were inspired by the “Grand Touring” automobiles for motor sports, Okuyama's field of expertise.

By fusing grace into the simple, unadorned automotive design, the functional elements of the GT automobiles - speed, distance and time - are embodied in the mechanical watches.

As if heralding a grand adventure to places unknown, the new ISSEY MIYAKE Prestige Watches are ready to begin ticking.


 Kiyoyuki Ken Okuyama

Kiyoyuki Ken Okuyama
Industrial designer / CEO, KEN Okuyama Design

Born in 1959 in Yamagata, Japan. Ken has worked as a Chief Designer for General Motors, a Senior Designer for Porsche AG, and a Design Director for Pininfarina S.p.A., being responsible for Ferrari Enzo ,Maserati Quattroporte and many other projects. He is also known for numerous products such as motorcycles,furniture, robots, and architecture. In 2007, KEN OKUYAMA DESIGN was founded providing design business consultancy to many corporations. The recent works include Shinkansen, trains, tractors, watches, etc. The company also produces and markets limited production automobiles, everywear,interior products under KEN OKUYAMA brand.
He is currently a director of Yanmar Holdings Co., Ltd.and a visiting professor at several universities. Ken is also a published author of many book.

  • car design
  • car design


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Case/Band: Stainless steel


Case/Band: Stainless steel (Hard Coating)


Case: Stainless steel Hard Coating(Bezel: Black hard coating)
Band: Crocodile (black)


Case: Stainless steel
Band: Calf (blue)


Cal. : Mechanical Movement 8R48
Jewels: 34 jewels
Accuracy: Average daily loss/gain between -15 and +25 seconds
Case size: Diameter: 45.2mm (excluding screw and protrusions)
thickness: 15.0mm
Case back: See-through ; screw back
Glass Material: Sapphire glass (with non-reflective coating inside)
Functions: Power reserve: approx. 45 hours
Vibrations: 28,800 vibrations/hour (8 beats/second)
Water Resistance: 10 Bar