Strap for Super Antarctic 3.6.9. Black - No Vintage Effect / Stainless Steel / Black - White

The lug width of the Nivada Grenchen Super Antarctic 32039A15 is 20 millimetres. This measurement represents the distance between the two internal lugs of the case where the strap is attached. To verify it, place a digital calliper between the internal lug shoulders: the resulting value must correspond exactly to 20mm to guarantee compatibility with aftermarket straps.

The Super Antarctic benefits particularly from straps in vegetable-tanned leather or natural alligator, which enhance the instrumental and vintage character of the case. For daily wear, a soft calf strap with natural patina offers versatility and comfort. If the watch is intended for sports contexts or humid environments, a technical rubber or woven NATO strap represents the most practical choices without compromising overall aesthetics.

To change the strap, position the watch on a soft surface with the caseback facing upwards. Use a spring bar tool (a specialised tool for spring bar lugs) to gently press one of the metal tabs hidden inside the lug, then extract the spring bar together with the old strap. Repeat the operation on the opposite side. Insert the new strap by aligning the two holes to the lugs and pressing gently until the spring bar clicks into position.

Yes, any strap designed for 20mm lugs is perfectly compatible with the 32039A15. Artisanal straps made to measure for this width guarantee precise and uniform fit to the case, without play or misalignment. It is essential to always verify the lug width before purchase to avoid compatibility issues.

The durability of a leather strap depends on the quality of the tanning, daily use, and climate conditions. A vegetable-tanned artisanal leather strap generally has a useful life of 3-5 years with regular use, developing a natural patina over time. Constant exposure to humidity and UV rays reduces durability; regular maintenance with leather-specific oils can significantly extend the strap's life.