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Wyler Vetta · Jumbostar

Strap for Wyler Vetta Jumbostar WV0402

The Wyler Vetta Jumbostar WV0402 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
ReferenceWV0402
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 Bracciale in stainless Steel bilux with sgancio rapido e fibbi

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 WV0402

What strap size does the Wyler Vetta Jumbostar WV0402 take?

The Wyler Vetta Jumbostar WV0402 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 WV0402 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 WV0402?

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 WV0402?

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 WV0402

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Jumbostar WV0402, seen from the bench

The Wyler Vetta Jumbostar WV0402 is a Swiss timepiece featuring a 40 mm stainless steel case with minimalist 1970s design. It houses an automatic ETA 2894 caliber movement with a 42-hour power reserve and 28,800 vibrations per second (4 Hz), ensuring reliable daily precision. The 20 mm lug width positions this model between classic dress and casual categories, making it versatile for medium to large wrists while remaining elegant under shirt cuffs.

Frequently asked questions

Which strap should I choose for the Wyler Vetta Jumbostar WV0402?

For the WV0402, we recommend quality leather straps (alligator, vegetable-tanned calf) that enhance the balanced proportions of the case, or cotton-linen NATO straps for those seeking informal character. Fine-grained vulcanised rubber remains the ideal option for humid environments or warm seasons, maintaining aesthetic coherence. Your choice depends on daily usage and the tone you wish to express.

Can I use an aftermarket quality strap on a Wyler Vetta WV0402?

Absolutely. Artisanal straps compatible with 20mm lugs represent a significant upgrade over factory specifications. We recommend straps made with vegetable tanning for greater longevity and natural patina development over time. Always verify that the lug width is exactly 20mm and that the strap thickness does not exceed 4–5 millimetres to ensure comfortable contact with the case.

How long does a leather strap last on a Wyler Vetta WV0402?

The lifespan of a leather strap depends on usage, tanning method and maintenance. A vegetable-tanned leather strap, if treated with protective wax every 6–8 months and kept away from excessive heat sources, can last 3–5 years. Frequent exposure to sweat, water and sunlight accelerates ageing. Vulcanised rubber straps offer superior durability (5–7 years), whilst cotton-linen NATO straps last indefinitely if not subjected to mechanical stress.

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