Technical Archive

Nomos Glashütte
Orion 321— lug 17mm

Nomos Glashütte Orion 321: 17mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Orion 33 / Closed Case Back

Artisanal Note

"This model requires a precise 17mm lug width to preserve the original sartorial balance."

Technical Specifications

Nomos Glashütte 321
Lug Width
17 mm

The essential strap measurement.

Browse 17mm straps →
Reference

321

Movement

Nomos Glashütte caliber Alpha Hours, Minutes, Small Seconds

The Heritage

The Orion represents one of the flagship models of the German manufacturer Nomos Glashütte, characterized by its minimalist Bauhaus design. It is powered by the in-house Alpha caliber with indication of hours, minutes and small seconds. The lugs measure 17mm in width.

FAQ

What is the lug width of the Nomos Glashütte Orion 321?

The lug width of the Orion 321 is 17.00 mm. This dimension is proportioned to the 32.80 mm case diameter and represents a deliberate design choice by the manufacture. To verify correctly, measure with a ruler directly on the internal lug seat, from wall to wall.

Which strap pairs best with the Nomos Orion 321?

Given the Orion 321's minimalist Bauhaus philosophy, it pairs best with natural and understated strap materials. A medium brown alligator strap, or calf leather with vegetable tanning in taupe-grey tones, represent the most coherent choices with the watch's aesthetic identity. For formal contexts, authentic shell cordovan guarantees superior elegance.

How do I change the strap on a Nomos Orion 321?

The Orion 321 uses straight lugs measuring 17 mm. To replace the strap: remove the watch from your wrist, use a specialised spring bar tool to push the retaining pin inward, extract the pin, remove the worn strap, insert the new strap, and reinsert the pin. If you lack experience, contact Casati Milano for professional assistance.

Can I use an aftermarket-compatible strap on a Nomos Orion 321?

Yes, you can use aftermarket straps with a certified 17 mm lug width. Ensure the strap has been measured with millimetre precision, as dimensional tolerance errors will result in unwanted lateral movement of the lug. On milanostraps.it you will find a comprehensive selection of compatible 17 mm straps, from natural leather to NATO, all dimensionally verified.

How long does a leather strap last on a Nomos Orion 321?

A leather strap's lifespan depends on the material and usage patterns. An alligator or authentic shell cordovan strap with vegetable tanning, with ordinary care (avoiding water, prolonged humidity, direct sunlight), maintains structural integrity for 4-7 years. Vegetable-tanned calf typically lasts 3-5 years. The natural patina that develops is desirable. Casati Milano offers restoration and lug-replacement services.