Timekeepers Club / July 22, 2022

Frederic Jouvenot Moon Deity Sîn

In the new Frederic Jouvenot Moon Deity Sîn, the watchmaker has once again broken the mould of the conventional. The multi-layered dial is not like anything seen before and there is but a single gold hand, for the hours, but elsewhere little is familiar to the eye, and there is plenty to confound the curious admirer.

A three-dimensional display of day and night

Sîn is dedicated to Mesopotamian god of the moon, and it charts the passage of time and the sky above across the span of 24 hours, of day and night, and of sunrise and sunset which he has displayed to wonderful effect using an ingenious system of opposing rotating sun and moon orbs and a play on the eye.

Whilst displaying time in a vaguely recognizable 12-hour format via the short gold hour hand, which has been mounted so as to hover as it travels, and the signature minutes by way of rotating central gold dome, the beautiful little rose gold sun orb and the opposing white gold moon complete a circuit of the dial every 24 hours with the sun appearing from behind the cleverly designed split level dial at 6am and then disappearing again at 6pm, when the moon emerges and takes over for the following 12 hours.

To make the most of this engaging spectacle, the bezel and crystal are one piece of sapphire, giving yet another unique aspect to the Sîn, and ensuring that every one of the myriad details of the dial are exposed. The Frederic Jouvenot Moon Deity Sîn is cased in black DLC titanium and features its distinctive long skeletonised lugs.

Turn the watch over and a sapphire crystal caseback reveals the immaculate detail and hand finishing on the in-house manufacture manual movement within. The black gold screw balance wheel which is the heart of the movement pulsing at a relatively leisurely 28,800 vph, the screw heads and beveled edges of the plates and bridges polished to a mirror finish and the surfaces decorated with Côtes de Genève.

Frederic Jouvenot is a Swiss independent Master-watchmaker, having worked for most prestigious and innovative manufactures, and developing for years some of the most amazing Grandes Complications.

Technical specifications

Frederic Jouvenot Moon Deity Sîn

Limited edition of 88 pieces


  • Material: Titanium case, crown and back
  • Dimensions: 44 x 55 mm
  • Thickness: 13 mm
  • Glass: Face and back sapphire crystal cover with antireflective coating
  • Sapphire crystal bezel, secured to the case with pins
  • Water-resistant to 50 meters (5 bar) 

Dial and hands

  • Black dial
  • Hour display with an eccentric hand turning all around the planets and the minutes
  • Display of minutes via a three dimensional hand turning in the center of the watch


  • Movement bridges decorated and engraved with rhodium plated Côtes de Genève
  • Mechanical with manual winding
  • Number of jewels: 18
  • Screw-adjusted balance, frequency of 28,800 vph (4 Hz)
  • Power reserve of 50 hours


  • Face indicating the passage of 24 hours with the moon and the sun in three dimension
  • Hour display with an eccentric hand turning all around the planets and the minutes
  • Display of minutes via a three dimensional hand turning in the center of the watch

Strap and buckle

  • Black alligator leather strap
  • Titanium folding clasp with DLC treatment

MSRP: CHF 29'000

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