Strap for Antarctic 35 Eggshell - Beige Luminova / Stainless Steel / Black - White

The lug width of the Nivada Grenchen Antarctic 35001M15 is 18 mm. This dimension represents the standard proportion for sports watches from the 1960s: it identifies the distance between the anchor pins of the strap to the lug holes. Always verify by measuring directly between the holes before ordering a new strap.

For the Nivada Grenchen Antarctic 35001M15, we recommend three distinct solutions according to intended use. An alligator strap with vegetable tanning emphasises the elegant and sophisticated purpose. Natural calf leather with visible grain develops a patina story parallel to the steel case ageing. NATO straps in cotton or synthetic silk reinterpret the model in its original expedition tool nature, ensuring practicality and rapid changeability.

To change the strap on a watch with 18 mm lug width: remove the anchor pins using a spring bar tool. Position the extractor in the lateral slot of the pin, apply controlled pressure inward to compress the spring, extract the pin. Insert the new strap aligning the holes to the lugs, reinsert the pins ensuring the spring is fully engaged. Avoid excessive force that could damage the steel lugs.

Any strap with 18 mm lug width is compatible with the Antarctic 35001M15. Verify correct width by measuring between anchor holes. We recommend artisanal straps in superior leather quality, certified NATO options, or structured rubber with texture. Avoid excessively thick straps that would compress the wrist given the compact case proportions of 35 mm diameter.

Leather strap durability depends on frequency of use, humidity exposure, and tanning quality. With artisanal vegetable tanning and moderate use (4-5 days weekly), an alligator or calf strap maintains functionality for 3-4 years. Constant humidity exposure reduces lifespan. The natural patina that forms increases aesthetic appeal. Strap replacement is scheduled maintenance: compatibility with 18 mm lug width allows rapid change without technical interventions on case or movement.