Tetra is a timepiece squared—and what a watch it is! Tetra has the edge, and a personality to match. Even in this square frame, the tempered blue hands move in a circle. No diamonds, mother of pearl, or frills, just ticking. That’s thanks to the in-house NOMOS Alpha caliber, as reliable as always.
Tetra’s typography is reminiscent of Tangente. However, the sans serif numerals here are a touch more modern.
At the heart of this watch, the NOMOS Alpha caliber is at work—creating a beautiful profile when viewed from the side.
Prizes and awards
The prizes have been stacking up—Tetra wins you over with style, charm, and substance. And has done so for a quarter of a century.
Impression
Tetra, entirely classic in a 29.5 by 29.5-millimeter size. Hand-wound and slender too, at only 6.5 millimeters in height.
Specifications
- Ref.
- 406
- Case
-
stainless steel
sapphire crystal glass back
fixed with four screws
- Glass
- sapphire crystal glass
- Winding
- manual
- Dimensions
-
size
29.5 mm
×
29.5 mm
height 6.5 mm
lug-to-lug 40.5 mm
- Water resistance
- 3 atm (splash-proof)
- Dial
- galvanized, white silver-plated
- Hands
- steel, tempered blue
- Strap
-
Horween Genuine Shell Cordovan black
lug width 18 mm
Caliber
The classic from NOMOS Glashütte, and number one: the handcrafted and manually wound Alpha caliber, which keeps on running—highly precise and highly praised, you only need to wind it once every two days.
- Caliber
-
Alpha
manual
- movement height
- 2.6 mm
- diameter
- 10 ½ lines (23.3 mm)
- Power reserve
- up to 43 hours
- Jewels
- 17
Beautiful things
Outstanding materials
In Chicago, one of the finest leathers in the world is tanned: Horween Genuine Shell Cordovan. Smooth, thick, and almost indestructible, it suits every watch and wearer.
Beautifully presented
Our hand-wound watches are shipped in the NOMOS watch case. Made from black poplar wood, this case has room for your favorite watch and the warranty card.
