Staudt · Praeludium Petit

Strap for Praeludium Petit

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

Lug width20 mm
Case diameter37 mm
ReferenceP31.011-A03
FamilyPraeludium Petit
MovementETA caliber 2892-A2 Hours, Minutes, Seconds | Date
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 Praeludium Petit P31.011-A03

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Praeludium Petit P31.011-A03, seen from the bench

The Staudt Praeludium Petit features the automatic ETA 2892-A2 caliber with hour, minute, second, and date indication. The watch has 20mm lug width for the strap. The ETA 2892-A2 movement offers a standard power reserve for this category of calibers.

Frequently asked questions

What is the lug width of the Staudt Praeludium Petit P31.011-A03?

The lug width of the Staudt Praeludium Petit P31.011-A03 is precisely 20 millimetres. This measurement represents the internal linear distance between the two attachment pins located on the case. It is essential to verify this dimension accurately when selecting an aftermarket strap, as even minor manufacturing tolerances can result in excessive play or imperfect fit.

Which strap is most suitable for the Praeludium Petit P31.011-A03?

For the Praeludium Petit P31.011-A03, straps that respect the minimalist proportion of the model are recommended. Genuine alligator with characteristic grain offers formal elegance; vegetable-tanned calf adds nobility with natural ageing; a 4x2 fabric NATO provides casual versatility; vulcanised rubber is ideal for sports use. All materials must be available in the 20mm size compatible with this case.

How do you change the strap on the Staudt Praeludium Petit P31.011-A03?

The strap is changed using a spring bar remover (a specific tool for extracting elastic pins). Position the flat end of the tool under the pin on the side of the strap to be removed, lift gently to compress the internal spring, extract the pin and strap. Reverse procedure for installing the new strap: insert the pin into the spring hole, then snap into the case seat. Verify that the pin is fully inserted on both sides.

Which aftermarket straps are compatible with the P31.011-A03?

All straps with a 20mm lug width are compatible with the Praeludium Petit P31.011-A03. At milanostraps.it, an extensive selection of artisan 20mm straps is available in leather (alligator, calf, shell cordovan), NATO fabrics and rubber solutions. It is essential to verify that the strap thickness is proportionate to the case lugs for optimal fit.

How long does a natural leather strap last on this watch?

The lifespan of a natural leather strap depends on usage intensity, climatic conditions and material quality. Generally, a quality calf strap lasts between 3 to 5 years; genuine alligator can exceed 7–8 years thanks to its more robust fibrous structure. Vegetable-tanned leather ages nobly, developing visible patina. Prolonged exposure to moisture accelerates wear; seasonal rotation (for example with NATO during summer) extends the average lifespan of the leather solution.

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