Nomos Glashütte
Orion 311.9— lug 18mm
Nomos Glashütte Orion 311.9: 18mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 18mm lug width to preserve the original sartorial balance."
Technical Specifications
Nomos Glashütte 311.9The essential strap measurement.
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Nomos Glashütte caliber Alpha Hours, Minutes, Small Seconds
The Heritage
Compatible Straps
Selected for the 18mm lug width of the Orion
FAQ
What is the lug width of the Nomos Glashütte Orion 311.9?
The Nomos Glashütte Orion 311.9 features an 18mm lug width. This measurement is precisely calculated by Glashütte's design team to maintain proportional balance on the 35mm case. To verify strap compatibility, measure the distance between the lugs (the protruding pins where the strap attaches): it must be exactly 18mm.
Which strap do you recommend for the Nomos Glashütte Orion 311.9?
The choice depends on intended use. For formal occasions, we recommend dark brown alligator with a gold deployante buckle. For daily elegance with versatility, vegetable-tanned calf leather develops stunning patina over time. For sporty practicality whilst maintaining dressy character, FKM rubber in black or a leather NATO strap works exceptionally well. Avoid cheap synthetics: a watch of this calibre deserves genuine materials.
How do I change the strap on my Orion 311.9?
You will need a spring bar tool. Position your watch with the lug facing upward. Insert the tool's tip into the small hole beneath the lug, push downward to release the spring, and slide the spring bar out from the case lugs. Repeat on the opposite side. Reverse the procedure to install the new strap. If uncertain, consult a certified watchmaker.
Can I use an aftermarket strap that is compatible with the 18mm lug width?
Absolutely. A quality artisanal strap in alligator, calf, or shell cordovan can actually enhance the watch beyond the original Nomos strap. Always ensure the strap is certified 18mm, the thickness is appropriate (4-5mm maximum), and the lugs are constructed from stainless steel or gold for longevity.
How long does a leather strap last on a watch like the Nomos Orion 311.9?
A high-quality leather strap (calf, alligator, cordovan) in vegetable tanning, with proper maintenance (avoid water exposure, apply conditioner periodically), will last 5-8 years of daily wear. Shell cordovan, when properly cared for, can exceed 10 years. FKM rubber typically lasts 3-5 years before degradation. NATO straps, given their affordable cost, are easily replaced every 2-3 years.