DISCOVERY / Watches & Mechanical Design

MB&F FlyingT Onyx, a dial for the wearer.

A small inclined time display and a tall central tourbillon give the wearer two distinct things to look at.

The photograph shows reference 05.YL.ON from an angle that reveals the dome and the central mechanism.

Published 4 November 2026 · WHV

The time on the FlyingT is read on a small dial angled towards the wearer. The central flying tourbillon takes up a different part of the space beneath the dome. Look at the watch on a wrist before judging it from a face-on image. The two views explain the design in different ways.

Reference 05.YL.ON pairs a yellow gold case with an onyx dial plate. The dark plane makes the height and movement of the assembly easier to see. Other FlyingT versions use different materials, so establish the exact reference before making comparisons.

Ask how the domed case sits under a sleeve and how servicing is handled in your region. For a pre-owned watch, obtain the service record and inspect the crystal and case with a qualified specialist.

Evidence & sources.

  1. MB&F, Legacy Machine FlyingT technical record (opens source in a new tab)
  2. YourWatchHub, FlyingT Onyx reference 05.YL.ON and photographs (opens source in a new tab)

Scope of this reading

The photograph identifies the onyx reference. Fit, service history and condition depend on the watch you handle.

Sources checked 4 November 2026.

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