Nomos Glashütte · Tangente

Strap for Tangente 33 Doctors Without Borders UK

Takes 17 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width17 mm
Case diameter33 mm
Reference123.S4
FamilyTangente
MovementNomos Glashütte caliber Alpha hours, minutes, small seconds
Year2014
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

The Tangente 123.S4, seen from the bench

The Tangente represents one of the core models of Nomos Glashütte, characterized by the minimalist Bauhaus design. It features the in-house caliber Alpha with hours, minutes and small seconds indications. The case presents 17mm lugs and the essential lines typical of German production.

Frequently asked questions

What is the lug width of the Nomos Glashütte Tangente 123.S4?

The Nomos Glashütte Tangente 123.S4 features a lug width of 17.00 mm, an exceptionally rare measurement in contemporary watchmaking. This specific dimension requires bespoke artisanal straps, excluding standardised commercial solutions of 20 mm. Measurement should be taken by calculating the distance between the inner shoulders of both lug attachments.

Which strap is recommended for the Tangente 123.S4?

For the Tangente 123.S4, leather straps with vegetable tanning (calf leather, shell cordovan, alligator) are ideal, as they enhance the aesthetic purity of the stainless steel case. Alternatively, NATO straps in heavy canvas amplify the minimalist vocation, whilst FKM rubber solutions transform the watch into a sport-casual companion. The choice depends on the desired aesthetic narrative.

How do I correctly change the strap on a Nomos Glashütte Tangente 123.S4?

To change the strap, obtain a dedicated spring bar tool and work with care to avoid scratching the case. Gently remove the pressure springs (spring bars) one lug at a time, lift the old strap and insert the new one. Verify that the springs are completely locked in the lug seats. If you lack experience, consult a certified Nomos watchmaker to prevent structural damage.

Are compatible aftermarket straps available for the Tangente 123.S4?

Yes. Milano Straps offers a comprehensive collection of artisanal straps in 17mm width, compatible with the Tangente 123.S4. All solutions are crafted from superior materials (natural leather, premium rubber, technical textiles) and include customisation options. Shipping is rapid and customer service supports the selection process.

What is the average lifespan of a leather strap for the Nomos Tangente 123.S4?

A quality leather strap crafted with vegetable tanning offers a lifespan of 2–4 years under daily use, depending on climate and frequency of wear. Natural leather ages organically, developing a patina that increases aesthetic value. To extend longevity, avoid prolonged humid environments and periodically clean the strap with soft, dry cloth. Specialist artisans can regenerate worn straps through recolouring and treatment.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only