Nomos Glashütte
Tangente 179.S31— lug 18mm

The Nomos Glashütte Tangente 179.S31 features an 18mm lug width. This dimension was deliberately chosen by Glashütte to maintain the linear elegance of the Tangente's Bauhaus design, ensuring balanced proportions between the 37.50mm case diameter and the strap. An 18mm width grants access to a comprehensive range of artisanal, quality straps—from vegetable-tanned leathers to technical elastomers.

The optimal strap depends on intended use and personal preference. For formal dress wear, we recommend an alligator with vegetable tanning in cognac brown or a hand-stitched calf leather of high quality, which will develop a natural patina over time. For everyday versatility, a high-density canvas NATO or a soft cacao-coloured calf leather offer durability whilst maintaining the 18mm proportion. To highlight the visible movement through the exhibition caseback, a grey-stone or black FKM rubber amplifies the Tangente's minimalist and contemporary aesthetic.

The Tangente 179.S31 employs a standard pin-and-lug lugs system. Follow these steps: 1) Position the watch on a soft surface to prevent scratches. 2) Gently extract the lug pin using a dedicated spring bar tool, inserting it from the opposite side of the elastic retainer. 3) Once the pin is removed, the strap will come free effortlessly. To install your new 18mm strap, reinsert the pin until you hear a reassuring click confirming correct seating. If you lack experience, consult a professional: at Atelier Casati Milano, we perform strap changes with watchmaking precision.

Yes, all straps with 18mm lug width are compatible with the Nomos Glashütte Tangente 179.S31. The lugs employ standard 18mm pins, meaning you can choose amongst alligator, calf, shell cordovan, canvas NATO, FKM rubber, or exotic leathers—provided they respect this dimension. We recommend verifying the strap's total length: the Tangente 179.S31 requires a standard-size strap (approximately 75–115mm from the lug) compatible with average wrist sizes.

Leather strap longevity depends on material quality and usage patterns. A hand-stitched, vegetable-tanned calf strap typically endures 3–5 years of daily wear before showing visible signs of stress at the lugs (where the strap flexes constantly). Alligator tends to last longer, approximately 5–7 years, owing to the reptile's structural properties. Leather ages beautifully, developing a patina that signals authenticity. A high-density canvas NATO withstands roughly 10 years, whilst FKM rubber resists 4–6 years before elasticity diminishes. We advise rotating between multiple straps periodically to extend service life.