Wyler Vetta · Jumbostar

Strap for Wyler Vetta Jumbostar WV0420

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter40 mm
ReferenceWV0420
FamilyJumbostar
MovementMovimento La Joux-Perret G100 power reserve: 68h Frequenza: 28800 A/h Istruzioni d'uso Avvia 68h Frequenza: 28800 A/h Istruzioni d'uso Avvia il downl 28800 A/h Istruzioni d'uso Avvia il download {"image":"\
Case40mm Lug to lug: 48mm Distanza tra le anse: 20mm Spessore to
Crystalsapphire bombato antiriflesso Rehaut rotating with rotazione unidirectional a scat
Water resistance10 ATM Cinturino in leather color blue cobalto with sgancio rapi

Spring bar

Swiss Standard universal spring bars

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

Straps for the Jumbostar WV0420

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Jumbostar WV0420, seen from the bench

The Wyler Vetta Jumbostar WV0420 is a compact wristwatch from the Jumbostar family, featuring a 40mm stainless steel case and a 20mm lug width. It is equipped with the La Joux-Perret G100 movement, a Swiss calibre with an 8 Hz frequency and 68-hour power reserve. The watch combines sober elegance with functional design, maintaining readable proportions suitable for various wrist sizes.

Frequently asked questions

What is the lug width of the Wyler Vetta Jumbostar WV0420?

The WV0420 is equipped with 20mm lugs, compatible with straps of equal width. To verify the measurement, simply measure the diameter of the pin (or stem) that connects the lugs to the case. A digital calliper provides precision; an approximate measurement with a ruler is sufficient to visually confirm that the width is standard-intermediate.

What type of strap is recommended for the Jumbostar WV0420?

The WV0420 is exceptionally suited to alligator or shell cordovan straps for formal occasions, full-grain vegetable-tanned calf leather for refined daily wear, and NATO straps for sporting versatility. The choice depends on predominant use: black alligator for formal register, tobacco calf for sober elegance, Cordura NATO for practicality. Each material emphasises different aspects of the timepiece.

How do you change the strap on a Wyler Vetta Jumbostar WV0420?

Removing the strap requires detaching the lugs from the case. The standard procedure involves using a spring bar removal tool inserted beneath the lug to compress the internal spring and release the pin. It is advisable to work on a soft surface to avoid damaging the case. Once the lugs are freed, the strap detaches easily. For remounting, insert the pin into the new lug and ensure the spring is fully seated.

Can an aftermarket strap of a different lug width be used on the WV0420?

No. The WV0420 requires exclusively 20mm straps. A strap of different width will not fit the pin or lugs of the case and compromises both the mechanical integrity and aesthetics of the timepiece. Correct lug width compatibility is an absolute prerequisite for safe remounting.

What is the expected lifespan of a leather strap for the Jumbostar WV0420?

A quality leather strap, with vegetable tanning, has a lifespan of 3–5 years if subjected to moderate use and regular maintenance (periodic cleaning, protection from excessive moisture). Durability depends on usage intensity, climatic conditions, and leather hygiene: naturally aged leather develops patina, whilst a worn strap requires replacement. A Cordura NATO strap typically lasts longer, 5–7 years, owing to the inherent durability of the canvas.

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