Small In Size, Big In Character: The New Nomos Tetra 27 White And Duo
Nomos Glashütte continues to prove that elegant watchmaking doesn’t depend on large dimensions with the introduction of two new additions to its square-shaped Tetra collection. The new Tetra 27 White and Tetra 27 Duo embrace the German manufacture’s long-standing philosophy of compact, Bauhaus-inspired design while offering two distinct interpretations of minimalist dress watch aesthetics.
A Compact Square Case With Strong Presence
Although measuring just 27.50 mm x 27.50 mm, the Tetra’s square architecture gives it a noticeably larger wrist presence than its dimensions suggest. Thanks to its geometric proportions, the watch wears confidently while maintaining the refined elegance expected from a classic dress watch.
The polished stainless steel case stands only 6.10 mm thick, enhancing its slim profile and making it ideal for slipping beneath a shirt cuff. The design is further distinguished by Nomos’ signature stepped lugs, adding a subtle Art Deco character that complements the square silhouette.
A sapphire crystal protects the dial, while buyers can choose between a solid stainless steel caseback or a sapphire display back that reveals the beautifully finished movement. Despite its elegant nature, the watch still offers 50 metres of water resistance.
Two Different Expressions Of Bauhaus Simplicity
The two new references share the same case but deliver different personalities through their dial designs.
The Tetra 27 White remains faithful to Nomos’ iconic aesthetic. Its silver-plated galvanised dial features Arabic numerals and baton indexes inspired by the Tangente collection, complemented by thermally blued steel hands. A small seconds display sits at 6 o’clock, now presented a flat circular sub-dial that differentiates it from earlier Tetra models.
The Tetra 27 Duo, meanwhile, takes minimalism a step further by eliminating the seconds display altogether. Instead, it relies on a clean two-hand layout with a sophisticated two-tone galvanised dial. A light grey central square contrasts with a matching outer minute track, creating additional visual depth while preserving the uncluttered appearance that has become a Nomos hallmark.
In-House Hand-Wound Movement
Powering both watches is the manufacture’s DUW 4001 manual-winding calibre, an evolution of the well-established Alpha movement.
Visible through the optional sapphire caseback, the movement showcases the traditional finishing associated with Glashütte watchmaking. It features the characteristic three-quarter plate construction, Glashütte ribbing, perlage, blued screws and a double sunburst finish on the ratchet wheel. It also incorporates Nomos’ in-house escapement with a blue balance spring.
The movement delivers an extended 53-hour power reserve, while the Tetra 27 White additionally benefits from a stop-seconds mechanism for more precise time setting.
The bullet points can be seamlessly integrated into the text as follows:
Shell Cordovan Strap And Availability
Both models are paired with a black Horween Genuine Shell Cordovan leather strap, a long-time favourite across the Nomos collection thanks to its durability and premium feel.
The new Nomos Tetra 27 White and Tetra 27 Duo become permanent additions to the Nomos catalogue and are offered with either a solid stainless steel caseback or an exhibition sapphire caseback. Pricing starts at € 1,660 for the Tetra 27 Duo with a solid caseback and rises to € 1,920 for the same model with a sapphire display back. The Tetra 27 White is priced from € 1,860 with a solid caseback, while the version fitted with the sapphire exhibition back retails for € 2,120.
Final Thoughts
The new Tetra 27 White and Tetra 27 Duo may introduce only subtle changes, but they undoubtedly add greater character to an already charming collection. The Tetra 27 White does so discreetly through its redesigned flat small-seconds display, which, in our view, integrates more naturally into the dial than the previous recessed execution. The Tetra 27 Duo takes an even more refined approach by eliminating the seconds hand altogether. For a dress watch, where simplicity and elegance take precedence, a two-hand layout feels entirely appropriate and enhances the watch’s clean Bauhaus aesthetic. While we might have preferred the dial to feature a uniform colour rather than the two-tone treatment, the overall result remains highly appealing. All things considered, these are two excellent additions that further strengthen one of Nomos’ most distinctive collections.
Beyond the refreshed dial designs, the introduction of the new 27.50 mm x 27.50 mm case size further enriches the Tetra collection. Sitting alongside the existing 29.50 mm and 33 mm formats, it becomes the smallest option in the range and offers collectors an even more traditionally proportioned dress watch without sacrificing the distinctive wrist presence that defines the square-shaped Tetra.
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General Specifications:
Brand: Nomos
Model: Tetra 27 White, Tetra 27 Duo
Reference: 402 (White), 410 (Duo)
Dial: White silver-plated (White), white and gray silver-plated (Duo)
Case Material: Stainless steel
Case Dimensions: 27.50 mm x 27.50 mm, 6.10 mm thickness
Crystal: Sapphire Glass
Case Back: Stainless steel or sapphire glass
Water Resistance: 50 Meters
Strap: Black Horween Genuine Shell Cordovan strap with a steel pin buckle
Caliber: DUW 4001
Functions: Hours, minutes, small seconds (White)
Winding: Hand wound
Frequency: 3 Hz (21,600 Vph)
Jewels: 17
Power Reserve: 53 Hours
Price: € 1,660 (Duo solid case back), € 1,880 (Duo sapphire case back), € 1,900 (White solid case back), € 2,120 (White sapphire case back)
Availability: Now
Limited Edition: No
