Nivada Grenchen · Super Antarctic

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

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
Reference35013M17
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 35013M17

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The Super Antarctic 35013M17, seen from the bench

The Nivada Grenchen Super Antarctic features the Landeron 21 caliber with hour, minute, and second functions. The watch has 18mm lugs and reference 35013M17. The mechanical movement ensures the basic timekeeping functions.

Frequently asked questions

What is the exact lug width of the Nivada Grenchen Super Antarctic 35013M17?

The lug width of the Nivada Grenchen Super Antarctic 35013M17 is 18 millimetres. This width is engineered to maintain optical balance on a 35mm case without creating visual imbalance. Always verify with a digital caliper the distance between the two attachment points on the case before ordering a replacement strap.

What is the best strap for the Nivada Grenchen Super Antarctic 35013M17?

The best strap depends on intended use and aesthetic preference. For classical elegance, alligator with vegetable tanning develops rich patina over time. English bridle (Monte Cassino, English Bridle) with vegetable tanning offers uniform texture and predictable ageing. For intensive or aquatic use, fine-grained rubber is the most pragmatic choice. NATO canvas remains the versatile option that maintains vintage atmosphere.

How do I change the strap on my Nivada Grenchen Super Antarctic 35013M17?

Strap change requires a specific tool (sprung bar tool or pin punch). Locate the two attachment pins in the lugs, release the spring securing them using the appropriate tool, extract the pins, and remove the previous strap. Insert the pins into the new strap, aligning them correctly in the lugs, and restore the security clips. If you lack experience, entrust the task to a professional watchmaker to avoid case damage.

Can I use an aftermarket strap from another brand on my Nivada Grenchen Super Antarctic 35013M17?

Yes, provided it has a lug width of 18 millimetres. Quality aftermarket straps, provided they respect this measurement and feature standard-diameter pins (generally 1.6mm), are completely compatible. Always verify that the width is precise: even half a millimetre discrepancy can cause lateral play or prevent correct pin insertion.

How long does a leather strap last on a watch like the Nivada Grenchen Super Antarctic 35013M17?

Durability depends on tanning quality and intensive use. An alligator or calf strap with vegetable tanning lasts an average of 3-5 years of daily wear, developing desirable patina during this period. A NATO canvas resists longer (5-7 years) but requires occasional washing. Strap wear is accelerated by sunlight exposure, moisture, and perspiration. Regular maintenance (soft brush cleaning, six-monthly conditioning) significantly extends strap 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