Nivada Grenchen
Super Antarctic 32039A10— lug 20mm

The Super Antarctic 32039A10 features a 20mm lug width, a classic standard for 38mm wristwatches. This measurement is critical for sourcing compatible aftermarket straps. Always verify by measuring the inner pin diameter and the distance between both lugs to ensure precise fit.

The ideal strap is dark brown shell cordovan with vegetable tanning, which enhances the satinised steel's reflective qualities and develops a noble patina over time. Alternatively, grey NATO or cognac vegetable calf offer aesthetic versatility whilst maintaining technical coherence. Avoid synthetic straps: they contradict the watch's construction ethos.

The process is straightforward: use a spring bar tool to compress the metal pins securing the strap to the case. Insert the tool into the pin's hole, compress toward the centre, and the pin will extract from the case seat. Work deliberately to avoid scratching the steel. Repeat on the opposite side and insert the new strap by reversing the procedure.

Yes, you may use any aftermarket strap with 20mm lugs. We recommend handcrafted straps in vegetable-tanned or shell cordovan leather, which offer superior construction quality to mass-produced watch brand straps. Milanese artisanal straps distinguish themselves through stitching precision and noble leather selection.

A well-made vegetable-tanned leather strap typically lasts 3-5 years with daily wear, depending on washing frequency and construction quality. Shell cordovan shows slightly extended durability (4-6 years). The patina that forms is part of natural ageing and is highly desirable. With periodic maintenance (gentle cleaning and annual conditioning), a strap's operational lifespan can extend considerably.