Nomos Glashütte
Orion 389— lug 19mm

The lug width of the Nomos Glashütte Orion 389 is 19mm. This specific width belongs to the Orion family and has been engineered to maintain optimal proportions on the 38mm case. Any compatible strap must measure between 18.8mm and 19.2mm internally to ensure a precise and secure fit.

There is no absolute 'best' choice, only contextual ones. For maximum formal elegance, alligator leather tanned in cognac or dark brown is the canonical solution. For a more dynamic approach, vegetable-tanned calf develops an appealing patina over time. NATO fabric straps offer versatility and rapid-change practicality. Selection depends on intended use and personal aesthetic preference.

Strap change requires a specific tool: a spring bar tool. Insert the flat end gently into the small lateral hole beneath the lug, compressing the internal spring, then extract the spring bar. Repeat from the opposite side. Subsequently, insert the new strap by threading the spring bar through the lug openings. The operation takes a few minutes and requires no horological expertise.

Yes, absolutely. Any artisanal strap with a 19mm lug width (or permitting adjustment to that measure) is entirely compatible with the 389. Quality aftermarket straps from specialized manufacturers often surpass original equipment proposals from watchmakers in terms of finishing and comfort, whilst offering advanced aesthetic customisation possibilities.

Durability depends on material, use and storage. A premium alligator strap lasts 5–10 years under daily use, as crocodile leather resists abrasion and UV exposure more effectively. A vegetable-tanned calf strap requires 3–5 years before showing severe ageing (thinning, minor cracks), whilst simultaneously developing an appreciable patina. Rotating multiple straps significantly prolongs the overall longevity of each.