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Tetra Claerchen Hover or Tap to Zoom

the tourneau advantage

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Specifications i
The following are common watch specifications and their definitions:
  • Model Number- Consists of a combination of letters and/or numbers that are found on the back cover of a watch
  • Collection- Watch family name
  • Circa- Year watch was made
  • Case Thickness- Width between the case back and the top of the crystal
  • Bezel Type- Indicates whether the bezel is functional or purely aesthetic
  • Movement- The internal mechanism of a watch (either Manual, Automatic, or Quartz)
  • Water Resistance- The amount of pressure a watch can endure (typically underwater)

  • Manufacturer's Reference # 489
  • Collection: Tetra
  • Gender: Mid-size
  • Case Shape: Square
  • Case Size: 29.5 mm x 29.5 mm
  • Case Material: Stainless Steel
  • Crystal: Sapphire
  • Dial Markers: Arabic
  • Movement: Manual Winding
  • Movement Caliber: Alpha
  • Water Resistance: 30 meters
  • Strap/Bracelet: Strap
  • Strap/Bracelet Material: Leather
  • Features: Second Hand
  • Manufacturer Warranty: 2 years


The Tetra is the only NOMOS watch that does not have a round case, being instead a shape watch. As mechanical watches go, the Tetra—the name itself even sounds a bit rectangular—is extremely flat. In accordance with demand, the watchmakers in Glashütte assemble fewer units of this watch than of the round models.
NOMOS Glashütte

Tetra Claerchen

Item#: NOM0100054 489

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