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
ReferenceP31.022-A01
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 P31.022-A01

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Praeludium Petit P31.022-A01, seen from the bench

The Staudt Praeludium Petit reference P31.022-A01 features the automatic ETA 2892-A2 caliber with hour, minute, second and date functions. The watch has 20mm lugs for the strap. The ETA 2892-A2 movement is characterized by a modular construction and a power reserve of approximately 42 hours.

Frequently asked questions

What is the lug width of the Staudt Praeludium Petit P31.022-A01?

The lug width of the Staudt Praeludium Petit P31.022-A01 is exactly 20 millimetres. This measurement represents the distance between the two lugs (or spring bar points) where the strap attaches to the case. It is essential to purchase a strap specifically designed for this dimension to ensure perfect mechanical fit and eliminate any play between the strap and the case.

What is the best strap for the Staudt Praeludium Petit P31.022-A01?

The optimal choice depends on intended use and personal preference. For formal contexts, we recommend vegetable-tanned calf leather or alligator, which develop rich patina over time. For versatile daily wear, a high-density nylon NATO provides practicality and water resistance. For active use, engineered rubber ensures exceptional durability and maintenance ease. All our 20mm straps are mechanically compatible with this case.

How do I change the strap on the Staudt Praeludium Petit P31.022-A01?

Strap replacement requires a dedicated tool called a spring bar tool. Gently insert the fork of the spring bar tool into the groove of the lug to compress the internal spring slightly, then slide the strap laterally to free it. Repeat on the opposite side. To install the new strap, align the holes and reinsert the spring bars with gentle compression. If uncertain, consult a professional to avoid damage to the case.

Can I use an aftermarket strap on this watch?

Absolutely. Any strap with a 20mm lug width is mechanically compatible with the Staudt Praeludium Petit P31.022-A01. Our 20mm strap collection offers an extensive range of materials (leather, NATO, rubber) and colours. We recommend artisanal straps that respect the aesthetic philosophy of the watch, avoiding generic solutions that might compromise the elegance of the German design.

What is the lifespan of a leather strap for this watch?

The longevity of a leather strap depends on frequency of wear, climatic conditions, and tannage quality. A vegetable-tanned calf strap, worn daily, maintains structural integrity for 2–4 years before requiring replacement due to natural wear. Alligator, being a denser leather, can last 4–6 years. To extend strap lifespan, avoid prolonged exposure to humidity and direct UV rays, and occasionally treat it with natural conditioners formulated for noble leathers.

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