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

The Nivada Grenchen Super Antarctic 32031A14 features a lug width of 20 millimetres. This measurement corresponds to the distance between the centres of the two fixing holes on the lugs. It is a historical standard for European polar instruments, allowing robust spring bars without adding unnecessary weight to the watch.

We recommend vegetable-tanned Tuscan leather straps in dark brown or black, or alligator in burgundy tone. These materials respect the austere aesthetics of the period and develop a beautiful patina over time. For humid environments, robust canvas NATO straps remain faithful to the tool-watch tradition. Vulcanised rubber represents the contemporary solution for those seeking practicality and resistance.

Position the watch face-down on a soft cloth. Locate the two lateral lugs on the case, which hold the strap via the transverse spring bars. Use a spring bar tool to gently push the pin until it releases. Remove the old strap and insert the new one, ensuring the spring bars click correctly into the lugs. Verify the security before wearing the watch.

Yes, all straps manufactured with a 20mm lug width are compatible. It is essential to verify that the new strap respects precise dimensional tolerances: spring bars that are too wide or too narrow compromise the fit. Our straps are verified with calibres and ready for immediate mounting on the 32031A14.

A vegetable-tanned Tuscan leather strap typically lasts three to five years with daily wear, developing a fascinating patina over time. Genuine alligator exceeds seven years without appreciable aesthetic degradation. Durability depends on frequency of use, ambient humidity, and periodic maintenance such as gentle cleaning and timely drying after perspiration. Vulcanised rubber maintains mechanical integrity for eight to ten years.