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Wyler Vetta · Jumbostar

Strap for Wyler Vetta Jumbostar WV0409

The Wyler Vetta Jumbostar WV0409 takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width

20mm
20 mm strapsAll Wyler Vetta
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Lug width20 mm
Case diameter40 mm
ReferenceWV0409
FamilyJumbostar
MovementMovimento automatic caliber ETA 2894 Power reserve: 42h Frequenza: 28800 A/h (4 Hz) Istruzioni 42h Frequenza: 28800 A/h (4 Hz) Istruzioni d'uso Avvia i 28800 A/h (4 Hz) Istruzioni d'uso Avvia il download {"im
Case40mm Lug to lug: 48mm Distanza tra le anse: 20mm Spessore ca
Crystalsapphire bombato antiriflesso Rehaut rotating with rotazione unidirectional a scat
Water resistance10 ATM Cinturino in leather brown with sgancio rapido Made in I

Spring bar

Swiss Standard universal spring bars

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

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What I'm asked about the Wyler Vetta Jumbostar WV0409

What strap size does the Wyler Vetta Jumbostar WV0409 take?

The Wyler Vetta Jumbostar WV0409 needs 20 mm between the lugs, usually 16 mm at the buckle. It's the size I've been fitting on it for years.

Can the strap on the Wyler Vetta Jumbostar WV0409 be changed?

Yes. It has spring bars between the lugs: with the right tool the strap comes off in a minute. If you'd rather not risk a scratch, I do it in the workshop.

Can I put a leather strap on the Wyler Vetta Jumbostar WV0409?

Yes, in 20 mm leather. On a 40 mm case a calf strap works every day; if you want something more, alligator.

Which strap do you recommend for the Wyler Vetta Jumbostar WV0409?

A 20 mm calf strap, for every day. You'll find it ready in the 20 mm collection. If you'd rather have something built on your wrist, the Casati atelier.

Straps for the Jumbostar WV0409

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Jumbostar WV0409, seen from the bench

The Wyler Vetta Jumbostar WV0409 is an iconic Swiss sports watch from the 1960s with a 40 mm diameter stainless steel case and squared shape with soft edges. It features a slightly domed dial and a lug-to-lug distance of 48 mm for balanced wrist wear. The watch is powered by an ETA 2894 automatic caliber operating at 28,800 bph with a 42-hour power reserve. The strap width is 20 mm, the standard size for this model, measured precisely between the lugs.

Frequently asked questions

Which strap is most suitable for the Jumbostar WV0409?

The ideal strap depends on your intended use. For formal occasions, we recommend alligator leather or vegetable-tanned calf; for sports, a robust canvas NATO; for water use, an FKM rubber strap. In all cases, the lug width must be strictly 20mm, and the material should be of premium quality to honour the Swiss precision of your timepiece.

Can I use an aftermarket compatible strap on the WV0409?

Yes, provided the aftermarket strap is specifically designed for a 20mm lug width and manufactured by reputable artisans. Many international and Italian producers (such as strap specialists) offer straps of superior quality compared to OEM products. Always verify exact dimensions before ordering and choose materials that respect the qualitative standards of your Swiss timepiece.

How long does a leather strap last on a watch like the WV0409?

A premium leather strap (alligator, shell cordovan, calf) typically lasts 3-5 years of daily wear. Longevity depends on care: clean with a soft dry cloth, avoid prolonged water immersion, and protect from direct heat sources. Vegetable-tanned straps develop a richer patina over time, ageing elegantly. When the leather shows signs of wear, consider replacement to maintain the aesthetic value of your Jumbostar.

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

The atelier's website: casatimilano.com