Technical Archive

Nomos Glashütte
Orion 301— lug 18mm

Nomos Glashütte Orion 301: 18mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Orion 35 / Closed Case Back

Artisanal Note

"This model requires a precise 18mm lug width to preserve the original sartorial balance."

Technical Specifications

Nomos Glashütte 301
Lug Width
18 mm

The essential strap measurement.

Browse 18mm straps →
Reference

301

Movement

Nomos Glashütte caliber Alpha Hours, Minutes, Small Seconds

The Heritage

The Orion represents one of the main models of Nomos Glashütte, characterized by the typical minimalist Bauhaus design of the German brand. It is equipped with the in-house Alpha caliber with hour, minute and small second indications. The lugs measure 18mm in width.

FAQ

What is the lug width of the Nomos Glashütte Orion 301?

The Orion 301 features 18-millimetre lugs, the standard dimension for medium-format timepieces. This measurement is consistent across all Orion 301 references and corresponds to the width of compatible watch straps.

Which strap is most suitable for the Nomos Glashütte Orion 301?

The ideal strap depends on your intended use. For formal elegance, alligator leather with vegetable tanning or shell cordovan develop natural patina. For robust daily wear, calf leather with a stainless steel deployant clasp offers both comfort and durability. NATO straps emphasise the contemporary Bauhaus aesthetic. Natural rubber straps provide humidity resistance and excellent grip.

How do I change the strap on the Orion 301?

Use a spring bar tool to carefully remove the lugs from the previous strap without forcing the case. The Orion 301's lugs measure 18 millimetres in width: insert the new strap through the lug from below, aligning the strap's pass-through with the lug hole, and press firmly until the retaining clip engages. Avoid applying pressure to the case during this operation.

Is an aftermarket strap compatible with the Orion 301?

Yes, any strap with an 18-millimetre lug width is compatible. However, verify that the strap's pass-through allows smooth insertion into the case lug: overly narrow pass-throughs would force the retaining clip. For optimal compatibility, select straps from specialised suppliers who certify strap dimensions.

What is the average lifespan of a leather strap on the Orion 301?

A quality leather strap, with vegetable tanning, typically lasts 3–5 years under normal daily use conditions. Longevity depends on exposure to sunlight, humidity, and cleaning frequency. Shell cordovan and alligator leather with vegetable tanning age more gracefully and can last 5–7 years. Wear on the pass-through is the first indicator of replacement necessity.