Nomos Glashütte · Orion

Strap for Orion Neomatik Champagner 1st Edition

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

Lug width18 mm
Case diameter36 mm
Reference391
FamilyOrion
MovementNomos Glashütte caliber DUW 3001 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 Orion 391

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The Orion 391, seen from the bench

The Orion represents one of the classic lines of Nomos Glashütte, characterized by the minimalist Bauhaus design. It is equipped with the in-house caliber DUW 3001 with hour, minute and small second indication. The case features 18mm lugs and maintains the balanced proportions typical of the collection.

Frequently asked questions

What is the exact lug width of the Nomos Glashütte Orion 391?

The Orion 391 is fitted with 18mm lug width. This measurement should be verified by placing a digital calliper between the lateral pins of the case, excluding any lugs. The 18mm dimension represents the ideal proportion for the 36mm case diameter, ensuring visual balance and wearability stability.

Which strap would you recommend for the Orion 391?

We recommend vegetable-tanned alligator or English calf leather in dark tones for this model. The aesthetic restraint of the Orion 391 demands materials that do not visually compete with the dial. A raw canvas NATO represents a versatile alternative. Technical rubber is ideal for humid environments whilst maintaining contemporary sensibility.

How do I change the strap on the Nomos Orion 391?

Strap changes are performed via small removable pins (spring bars) fitted to the case lugs. Use a dedicated tool to extract the pins and insert the new strap. Professional service centre assistance is not necessary: the procedure takes minutes and requires no specialised equipment. Take care not to scratch the lugs during operation.

Are aftermarket straps compatible with the 391?

Yes, provided they respect the 18mm lug width and are equipped with standard spring bars. Milano Straps artisanal straps are all engineered for this specific measurement and guarantee perfect compatibility. Always verify lug width before purchase and select finishes (buckle, keepers) consistent with your watch's aesthetic.

How long does a leather strap last over time?

A premium leather strap subjected to daily use has an average lifespan of 3–5 years before requiring replacement. Ageing is a natural process: leather develops patina and possible micro-cracks due to exposure to perspiration and atmospheric elements. Careful maintenance—keeping the strap dry and occasionally applying specific creams—significantly extends this duration.

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