Nomos Glashütte · Zürich

Strap for Zürich Weltzeit 5th Avenue

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter40 mm
Reference805.S3
FamilyZürich
MovementNomos Glashütte caliber Xi Hours, Minutes, Small Seconds, World Time
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 Zürich 805.S3

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Zürich 805.S3, seen from the bench

The Nomos Zürich reference 805.S3 is equipped with the in-house automatic caliber Xi that integrates functions for hours, minutes, small seconds and world time. The case features 20mm lugs for the strap. The movement offers the complication of world time through the system developed internally by Nomos Glashütte.

Frequently asked questions

What is the lug width of the Nomos Glashütte Zürich 805.S3?

The Nomos Glashütte Zürich 805.S3 features a 20 mm lug width. This measurement represents the distance between the two spring bar attachment points on the case where the strap is fitted. Verifying this specification is essential before purchasing an aftermarket strap to ensure perfect compatibility with your timepiece.

Which strap is recommended for the Zürich 805.S3?

For the Nomos Zürich 805.S3, an alligator strap with vegetable tanning is recommended, as it complements the rationalist aesthetic of the watch. Alternative choices include vegetable-tanned calf leather for a restrained appearance, NATO fabric straps for casual versatility, or FKM rubber for sports environments. Selection depends on intended use and personal preference.

How do I change the strap on the Zürich 805.S3?

The strap is changed using a spring bar removal tool or delicate extraction pin. Insert the tool into the access hole beneath the lug, press the internal spring upward to release the attachment ring, then remove the strap. This operation requires precision to avoid damaging the case. If uncertain, consult a professional watchmaker.

Can I use an aftermarket strap compatible with the Zürich 805.S3?

Yes, you may use quality artisanal aftermarket straps provided they respect the 20 mm lug width and compatible attachment system (spring bar loops). Handcrafted straps from Italian makers such as Milano Straps ensure construction quality and finishing consistent with Nomos horological excellence, allowing personalisation without compromise.

What is the lifespan of a leather strap on the Nomos Zürich 805.S3?

A quality leather strap (alligator, vegetable-tanned calf) typically lasts 3-5 years with daily wear, depending on frequency of use, sun exposure, and humidity levels. Longevity increases with regular maintenance (cleaning, conditioning). At Milano Straps, artisanal straps are engineered to age gracefully, developing patina and character over time.

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.

Request an appointment →

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