Strap for Orion Neomatik 39 Midnight Blue

The lug width of the Nomos Glashütte Orion 343 is 19 mm. This measurement is taken perpendicularly between the two lug pins on the case, excluding the curvature of the case. To verify the compatibility of a strap, use a digital calliper by inserting the probe between the lug pins.

Alligator or vegetable-tanned calf leather are ideal choices to enhance the Bauhaus geometry and minimalist dial. Alligator offers consistent grain and controlled patina development over time, whilst natural calf develops warm character towards honey-walnut tones. Alternatively, an anthracite-grey NATO offers tactical versatility without formal compromises.

The process requires two tools: a spring bar tool and a stable work surface. Position the tool in the lower groove of the lug, gently push to compress the internal spring, and extract the pin from the case. Repeat on the opposite side. Insert the new strap by positioning one side of the spring in the case hole first, then press the second side until you hear the click of closure.

Yes, provided they respect the 19 mm lug width specification. Brands such as Molequin, Erika's Originals, Hirsch, and Barton offer reliable solutions in this width. The Casati Milano atelier personalises handcrafted straps for this specific measurement, guaranteeing exceptional finish and materials.

Longevity depends on tannage and usage patterns. An alligator strap from French tanneries can last 8–12 years with minimal maintenance (periodic cleaning and wax/oil impregnation every 6 months). Vegetable-tanned calf, being more absorbent, requires constant care and typically lasts 5–8 years. A NATO strap in polyamide exceeds 10 years with exceptional moisture resistance.