Technical Archive

Nivada Grenchen
Antarctic 35002M16— lug 18mm

Nivada Grenchen Antarctic 35002M16: 18mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Antarctic 35 Black - White Luminova / Stainless Steel / Brown

Artisanal Note

"This model requires a precise 18mm lug width to preserve the original sartorial balance."

Technical Specifications

Nivada Grenchen 35002M16
Lug Width
18 mm

The essential strap measurement.

Browse 18mm straps →
Reference

35002M16

Movement

Landeron caliber 21 Hours, Minutes, Seconds

The Heritage

The Nivada Grenchen Antarctic 35002M16 is a Swiss mechanical watch from the 1950s designed for extreme exploration environments. It features a 35mm stainless steel case, a Landeron 21 automatic movement, and an 18mm lug width. The compact case diameter and essential design reflect a functional philosophy prioritizing mechanical reliability and durability over pure aesthetics, making it suitable both as a daily instrument and as a collectible piece with recognized historical significance.

FAQ

What is the lug width of the Nivada Grenchen Antarctic 35002M16?

The lug width of the Nivada Grenchen Antarctic 35002M16 is 18mm. This width must be respected rigorously when selecting a strap: the distance between the two pins that attach the strap to the case must be exactly 18mm, measured from the centre of one eyelet to the centre of the other.

Which strap is most suitable for the Nivada Grenchen Antarctic 35002M16?

For the 35002M16 we recommend an alligator strap with vegetable tanning for maximum elegance, a calf leather with vegetable tanning for daily durability, or a NATO cotton strap for practical versatility. The choice depends on the context of use: the alligator strap enhances the watch's heritage, calf leather offers robustness, and NATO ensures quick changes and reliability.

How do I change the strap on the Nivada Grenchen Antarctic 35002M16?

To change the strap, gently remove the pin securing the lug to the case using a dedicated tool (spring bar tool). Insert the new strap by passing the pin through the new side holes, ensuring the strap is properly centred and the pin is fully inserted. Verify there are no undesired lateral movements.

Is an aftermarket 18mm strap compatible with the 35002M16?

Yes, any aftermarket strap with an 18mm lug width is compatible with the Nivada Grenchen Antarctic 35002M16. The choice depends on construction quality and materials: high-quality leather straps with vegetable tanning guarantee a patina that develops over time, whilst technical rubber straps offer practicality for extreme environments.

How long does a leather strap last on the Nivada Grenchen Antarctic 35002M16?

A high-quality leather strap (alligator or calf with vegetable tanning) lasts an average of 3-5 years if worn daily, with progressive patination that increases its character. Longevity depends on exposure to moisture, perspiration and UV rays. A NATO cotton strap lasts 5-7 years. Regular maintenance (occasional cleaning and leather conditioning) significantly extends durability.