Nivada Grenchen
Super Antarctic 32026A04— lug 20mm

The lug width of the Nivada Grenchen Super Antarctic 32026A04 is 20mm. This measurement, crucial for selecting a compatible strap, is measured perpendicularly between the inner edges of the case lugs. A digital calliper provides the necessary precision to verify measurement accuracy before purchasing a strap.

The ideal strap depends on intended use. For authentic instrumental aesthetics, natural alligator or shell cordovan in dark tones emphasises the technical character of the brushed case. Vegetable-tanned calf leather offers versatility and dignified ageing. Cotton jacquard NATO guarantees practicality and moisture resistance. FKM rubber is the choice of pure pragmatism, ideal for aquatic or sports environments.

Changing the strap requires a simple tool: a spring bar tool. Position it under the lug pin to compress the internal spring, then extract the lug from the case shoulder. Repeat for the second side. The reverse operation installs the new strap: ensure the spring bar is fully inserted and clicks into the shoulders, verifying there is no lateral play.

Yes, any strap with a 20mm lug width is compatible, provided the spring bar is standard and the diameter of the spring hole matches. Artisanal leather, NATO and rubber 20mm straps offer infinite colour and construction variants, allowing you to personalise the watch according to personal taste and occasion.

A quality artisanal leather strap, with vegetable tanning and correct construction, typically resists 3-5 years of moderate daily use. Durability depends on sun exposure, humidity and intensity of use. Accelerated wear of the leather inside the lug is natural; periodic replacement is part of conscious ownership of a mechanical watch.