Nomos Glashütte
Tetra 415— lug 18mm

The lug width of the Nomos Glashütte Tetra 415 is 18mm. This dimension is proportionate to the 29.5mm case diameter and ensures the constructive balance characteristic of the Tetra family. To verify compatibility with aftermarket straps, measure the distance between the lugs that hold the strap.

For the Tetra 415 in yellow gold, we recommend a dark brown alligator in vegetable tanning, or burgundy shell cordovan. Both enhance the warmth of the gold and develop a patina parallel to that of the case. For sportier solutions, a grey NATO or black rubber maintain the minimalist austerity of the design.

The strap change on the Tetra 415 is performed through removable spring bars located at the two ends of the lugs. Use a dedicated tool (spring bar tool) to compress the small internal hook and slide the bar outward. Once released, the old strap separates from the case. Insert the new 18mm strap by sliding the bar into the hole and release: the internal hook will re-engage automatically.

Yes, straps with an 18mm lug width are compatible with the Tetra 415. On milanostraps.it you will find straps in leather, NATO, rubber and other finishes crafted with artisanal expertise. Always verify that the lug width is exactly 18mm before purchase. For a personalised bespoke solution, the Atelier Casati Milano team is available by appointment.

The lifespan of a leather strap depends on the tanning method and usage. A good-quality vegetable-tanned leather strap, worn regularly on a wristwatch, has an average life of 3-5 years before replacement. Alligator and shell cordovan maintain superior structural characteristics and can last up to 7 years. Exposure to water, sweat and UV rays accelerates fibre ageing.