Nivada Grenchen · Super Antarctic

Strap for Super Antarctic 35 Black - Beige Luminova / Stainless Steel / Tropic

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width18 mm
Case diameter35 mm
Reference35013M01
FamilySuper Antarctic
MovementLanderon caliber 21 hours, minutes, seconds
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Super Antarctic 35013M01

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The Super Antarctic 35013M01, seen from the bench

The Nivada Grenchen Super Antarctic reference 35013M01 is equipped with the Landeron 21 caliber with hours, minutes and seconds indication. The watch features 18mm lugs. The model is part of the Antarctic collection of the Swiss brand Nivada Grenchen.

Frequently asked questions

What is the lug width of the Nivada Grenchen Super Antarctic 35013M01?

The Nivada Grenchen Super Antarctic 35013M01 features an 18mm lug width. This measurement represents the distance between the two lug holes and is a historic standard for high-quality Swiss watches. When selecting a replacement strap, ensure the spring bars are sized for 18mm compatibility.

Which strap is recommended for the Super Antarctic 35013M01?

The most suitable straps for this model are dark brown or black alligator leather, shell cordovan, vegetable-tanned calf, khaki polyester NATO, and black FKM rubber with integrated deployante. The choice depends on context: alligator for formal elegance, NATO for sporting authenticity, and rubber for pure technical applications.

How do I change the strap on the Nivada Grenchen Super Antarctic 35013M01?

The strap is replaced by removing the spring bars that secure the old strap to both sides of the case. Use a dedicated strap removal tool or a small flathead screwdriver to gently push the spring bar from the opposite side. Align the new strap's holes with the bars and push the bar until fully seated. Verify secure attachment before wearing.

Can I use a quality aftermarket strap on this watch?

Yes, a quality aftermarket strap is fully compatible with the Super Antarctic 35013M01, provided the lug width is precisely 18mm. Milano Straps offers a curated selection of artisanal straps in various materials and finishes, specifically sized for this measurement, that respect the character and era of the case.

How long does a leather strap last on a watch like the Super Antarctic?

Leather strap longevity depends on material quality, tanning method (vegetable-tanned lasts longer than chrome-tanned), daily wear, and environmental humidity. A well-crafted alligator or shell cordovan may last 3-5 years of regular wear, whilst vegetable-tanned calf is typically estimated at 2-3 years. Maintenance, such as preventing water pooling on the spring bars, significantly extends useful life.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only