Nivada Grenchen · Super Antarctic

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

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
Reference35013M15
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 35013M15

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The Super Antarctic 35013M15, seen from the bench

The Nivada Grenchen Super Antarctic houses the Landeron 21 caliber with hour, minute and second indications. The watch features 18mm lugs for the strap. The reference 35013M15 represents a Swiss manufacture proposal oriented towards sports use.

Frequently asked questions

What is the lug width of the Nivada Grenchen Super Antarctic 35013M15?

The Nivada Grenchen Super Antarctic 35013M15 features 18-millimetre lug width. This measurement represents the distance between the two lugs where the strap attaches to the case. It is essential to verify that your chosen strap is precisely 18mm to ensure proper fit and secure attachment.

What is the best strap for the Nivada Grenchen Super Antarctic 35013M15?

There is no universal choice—it depends on your intended use and desired aesthetic. For formal wear or collecting, an alligator strap with vegetable tanning offers rich patina development and historical authenticity. For daily versatility, a vitello strap with pronounced grain in dark brown tones combines wearability with visible ageing. For extreme technical requirements or variable climates, an FKM rubber strap delivers stability and durability with minimal maintenance.

How do you change the strap on a watch with 18mm lugs?

The process requires a specific tool: a spring bar remover. Insert the flat tip of the tool beneath the lug from the interior side of the existing strap, then press gently upward to release the spring pin. Once the pin is extracted, remove the old strap. Insert the new strap and reinsert the spring pin into its seat, ensuring it is fully secured. Work with precision to avoid damage to the case lugs.

Which aftermarket straps are compatible with the Nivada Grenchen Super Antarctic 35013M15?

Any strap marked as 18mm (18-millimetre lug width) is compatible with the 35013M15. Milanostraps.it offers a dedicated selection of straps in alligator, vitello, NATO, and rubber, all tested for dimensional compatibility and construction quality. Always verify that your chosen strap includes standard spring bars (2.0mm diameter) to guarantee proper installation.

How long does a leather strap last before requiring replacement?

Leather strap longevity depends on material, tanning method, usage patterns, and climate conditions. A high-quality alligator or vitello strap with vegetable tanning can last 5–8 years of average daily wear, developing a progressive patina that increases aesthetic value. In humid environments or with intense sunlight exposure, durability may reduce to 3–5 years. Periodic maintenance (gentle cleaning and occasional conditioning) extends strap life significantly. A rubber FKM strap typically lasts 3–4 years before visible deterioration, with the advantage of requiring virtually no maintenance.

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