SKU:   Chaykin Thinking Mystery

Thinking Mystery


£436,800.00
Incl Vat (UK)
£364,000.00
Excl Vat

The Konstantin Chaykin ThinKing Mystery is one of the thinnest mechanical watches ever created, measuring just 1.65mm. Featuring a fully integrated case-movement architecture, transparent sapphire “mystery” displays, and a patented ultra-thin construction, this limited edition of 12 pieces redefines what is physically possible in watchmaking.

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This is not a thin watch. It is a different approach to watchmaking entirely. At 1.65mm thick, the ThinKing Mystery sits beyond conventional mechanical constraints. Achieving this required eliminating traditional architecture altogether, integrating the movement directly into the caseback, and redesigning every component to operate within extreme tolerances measured in fractions of a millimetre.

The display follows Chaykin’s “mystery” concept. Hours and minutes are shown via transparent sapphire discs, creating the illusion of floating indicators without visible mechanical connection. Internally, the K.23-3.1 calibre introduces a dual balance system, where two interlocking wheels regulate oscillation and impulse delivery. The barrel itself is redesigned, with no traditional upper bridge, and incorporates a patented overrunning clutch system. There is no crown. Instead, winding and time-setting are handled via dedicated external tools, engineered to prevent overwinding and reduce stress on the ultra-thin case.

This is not about aesthetics or heritage cues. It is about solving a mechanical problem most brands won’t attempt.

  • Ultra-thin case: 1.65mm total thickness
  • Limited to 12 pieces worldwide
  • In-house calibre K.23-3.1
  • Integrated case = movement mainplate
  • Transparent sapphire “mystery” time display
  • Dual balance system (patented)
  • 38-hour power reserve
  • No crown — external winding system
  • Weighs just 12.1g (without strap)
This is not a thin watch. It is a different approach to watchmaking entirely. At 1.65mm thick, the ThinKing Mystery sits beyond conventional mechanical constraints. Achieving this required eliminating traditional architecture altogether, integrating the movement directly into the caseback, and redesigning every component to operate within extreme tolerances measured in fractions of a millimetre.
The display follows Chaykin’s “mystery” concept. Hours and minutes are shown via transparent sapphire discs, creating the illusion of floating indicators without visible mechanical connection. Internally, the K.23-3.1 calibre introduces a dual balance system, where two interlocking wheels regulate oscillation and impulse delivery. The barrel itself is redesigned, with no traditional upper bridge, and incorporates a patented overrunning clutch system. There is no crown. Instead, winding and time-setting are handled via dedicated external tools, engineered to prevent overwinding and reduce stress on the ultra-thin case.
This is not about aesthetics or heritage cues. It is about solving a ...


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