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Tetra 27 Duo Doré
Watches · NOMOS Glashütte

Tetra 27 Duo Doré

Ref. 405 · In the case
The NOMOS Glashütte Tetra 27 Duo Doré brings elegant simplicity to the distinctive square Tetra design, with a compact 27 mm profile designed for slender wrists. Its two-hand display keeps the dial beautifully restrained, while the hand-wound DUW 4001 Duo calibre delivers precise Glashütte watchmaking without a seconds sub-dial. Refined gold accents add warmth to its geometric form, creating a sophisticated expression of contemporary German design.
Price on requestSpoken for in person
  • Manufacture CalibreDUW 4001 Duo
  • DialWhite
  • StrapStrap
Why we carry it

A study in proportion and restraint.

The NOMOS Glashütte Tetra 27 Duo Doré Ref. 405 brings a refined simplicity to the distinctive square Tetra form, with compact 27 mm proportions and subtle gold accents. Its two-hand display removes everything non-essential, allowing the geometric case and clean dial to take centre stage, while the hand-wound DUW 4001 Duo calibre delivers precise Glashütte craftsmanship.

We carry it for collectors who appreciate considered design — where distinctive geometry, mechanical simplicity and independent watchmaking come together.

Tetra 27 Duo Doré — movement
The movement · DUW 4001 Duo

A refined calibre built for essential timekeeping.

The DUW 4001 Duo is an in-house, manually wound manufacture movement that pares timekeeping back to its essentials while retaining the hallmarks of Glashütte watchmaking. Its three-quarter plate, Glashütte stopwork, tempered blue screws and fine ribbing and perlage are complemented by the NOMOS Swing System and DUW regulation system. Regulated in six positions with a 53-hour power reserve, it combines mechanical simplicity with meticulous finishing.

Calibre
DUW 4001 Duo
Type
Manual
Parts & jewels
17 jewels
Power reserve
up to 53 hours
Specifications

The watch, by the number.

The case

Diameter
27.5 mm × 27.5 mm
Thickness
6.1 mm
Lugs
38.5 mm
Material
Stainless Steel
Finishing
Stainless steel back
Glass
Sapphire crystal glass

The Dial & Functions

Colour
White
Material
Stainless Steel
Finish
Galvanized, white silver-plated
Pattern
Plain / smooth
Indices
Printed Arabic numerals and fine minute track
Hands
In gold
Seconds
NA
Functions
Hours, minutes, manual winding, stop-seconds

Bracelet & Water Resistance

Strap
Vegan velour remborde beige lug width 18 mm
Clasp
Stainless-steel pin buckle
Crown
Stainless-steel crown, push/pull
Water Resistance
5 ATM (splash-proof)
Begin a viewing

Hold it once. Turn it over.

A watch makes more sense in the hand than on a screen — particularly through the sapphire back. Book a viewing at 900 West Hastings St., Vancouver and we will put a loupe in your hand.

Begin a viewing →