Strap for Super Antarctic 3.6.9. Brown - White Luminous / Stainless Steel / Brown Racing

The lug width of the Nivada Grenchen Super Antarctic 32040A23 is 20 millimetres. This dimension is precise and requires straps specifically sized to ensure stable anchorage and ergonomic fit on the 38mm case. To verify compatibility, measure the internal space between the lugs with a digital calliper.

For the Super Antarctic 32040A23, we recommend an alligator or calf leather strap with vegetable tanning, which enhances the compact proportions of the satin case without overloading the wrist. If you prefer a more robust choice, a NATO in cotton or satin nylon echoes the military-avionic heritage of the chronograph. FKM rubber with a satin steel deployante ensures maximum solidity in technical environments.

The strap is changed by inserting the pin (bar) that passes through the lugs of the case. Use a spring bar tool to compress the internal spring of the pin and extract the worn strap. Insert the new strap by aligning the hole with the pin, then gradually release the spring until fully anchored. Verify that both sides are securely fastened before wearing the watch.

Yes, all straps with 20-millimetre lugs are compatible with the 32040A23. Quality aftermarket straps ensure optimal construction tolerance; however, always verify that the lug width corresponds to 20mm to avoid mechanical play or fit defects. Artisanal straps with vegetable tanning guarantee superior durability over time.

A quality leather strap with vegetable tanning has an average lifespan of 3-5 years of daily wear, depending on treatment and exposure to moisture and sun. The leather develops a natural patina that enhances aesthetics in the first year; however, the strap deteriorates gradually after the third year of intensive use. NATO and rubber straps have greater longevity (5-7 years), whilst FKM rubber models maintain elasticity for 4-6 years before beginning to stiffen.