Strap for Super Antarctic 35 Black - Beige Luminova / Stainless Steel / Beads of Rice

The lug width of the Nivada Grenchen Super Antarctic 35013M04 is 18 millimetres. This measurement is taken between the two internal points where the strap connects to the case. It is essential to verify this measurement before purchasing a replacement strap to ensure complete compatibility and prevent premature strap wear or case damage.

The choice depends on your intended use. To maintain the original exploratory character, we recommend vegetable-tanned leather, which develops patina over time. For chromatic versatility, a cotton-polyester NATO strap allows rapid colour changes. For aquatic environments or extreme conditions, FKM rubber ensures durability and requires no maintenance. Alligator leather is ideal for formal settings, thanks to its natural grain texture that complements the stainless steel bezel.

Strap replacement requires a spring bar tool (dedicated push pin). Place your watch on a stable surface. Insert the fine tip of the spring bar tool into the lateral hole of the lug, gently pushing the metal rod (spring bar) downward. The rod will click inward, releasing the old strap. Repeat on the opposite lug. To install the new strap, align the ends with the lugs and push slowly until you hear the engagement click. Verify the strap is securely fastened before wearing the watch.

Yes, provided you verify the lug width is exactly 18mm. A quality aftermarket strap (artisanal leather, FKM rubber, military-grade NATO) does not compromise the watch's functionality and avoids the issue of finding original straps, which are often difficult to source. Ensure the strap's extremities have spring bar attachment holes at the correct diameter (approximately 1.5–1.8mm). Straps of incorrect width will cause instability and accelerated wear on the stainless steel lugs.

A vegetable-tanned artisanal leather strap guarantees durability of 3–5 years with daily wear, depending on usage frequency and exposure to moisture. Natural leather is sensitive to standing water and prolonged direct UV rays. An FKM rubber strap, conversely, lasts 5–7 years, withstanding extreme conditions (saltwater, temperature extremes, chemical contact). Regular maintenance (periodic cleaning with a damp cloth) significantly extends the service life of both materials.