Nomos Glashütte · Tangente

Strap for Tangente Sport

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width18 mm
Case diameter37 mm
Reference501
FamilyTangente
MovementNomos Glashütte caliber Alpha Hours, Minutes, Small Seconds
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

Straps for the Tangente 501

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The Tangente 501, seen from the bench

The Tangente represents one of the flagship models of Nomos Glashütte, characterized by the Bauhaus design with small seconds at 6 o'clock. It is powered by the Alpha caliber produced internally by Nomos Glashütte with hours, minutes and small seconds indication. The case features 18mm lugs for the strap.

Frequently asked questions

What is the lug width of the Nomos Glashütte Tangente 501?

The Nomos Glashütte Tangente 501 is fitted with an 18 mm lug width. This measurement represents the classical standard for medium-sized watch cases (36.50 mm diameter) and enables broad compatibility with certified aftermarket straps. To verify the lug width with precision, use a digital caliper positioned between the inner points where the spring bar meets the case lug shoulder.

What is the best strap for the Nomos Glashütte Tangente 501?

The choice depends on intended usage and desired aesthetic coherence. An alligatore strap with vegetable tanning emphasises the Bauhaus purity of the model through its distinctive grain texture. A shell cordovan strap is excellent for those appreciating a patina that develops over time. A NATO strap in organic cotton maintains the functional aesthetic for dynamic use. For formal contexts, a structured calf leather strap with hand-finished details offers versatility and sartorial elegance.

How do you change the strap on a Nomos Glashütte Tangente 501?

The strap is secured by spring bars located within the case lugs. Obtain a strap removal tool or a flat-blade knife to apply light lateral pressure on the spring bar while simultaneously sliding the worn strap out of the lug. Insert the new strap by aligning the holes with the spring bars and press until you hear a click confirming engagement. This procedure takes less than one minute per side and requires no specialised equipment.

Is the Nomos Glashütte Tangente 501 compatible with quality aftermarket straps?

Yes, the Tangente 501 with its 18 mm lug width is completely compatible with certified aftermarket straps. This standard lug width provides access to a vast range of materials, styles and finishes: alligatore, calf, shell cordovan, NATO, vulcanised rubber. Ensure the strap is specifically designed for 18 mm lugs and employs professional-grade spring bars to guarantee security during daily wear.

How long does a leather strap last on a Nomos Glashütte Tangente 501?

Durability depends on leather quality, tanning method and intensity of use. An alligatore or shell cordovan strap with vegetable tanning can last 7-10 years with ordinary maintenance (occasional cleaning, protection from constant moisture). A structured calf leather strap has an average lifespan of 5-7 years under daily use conditions. Replacement is straightforward and inexpensive: it involves no intervention on the case or movement, as the spring bars remain anchored to the watch. The natural patina developing over time signals conscious usage rather than deterioration.

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