Girard-Perregaux · Laureato

Strap for Laureato 42 Chronograph Stainless Steel / Silver Panda / Alligator

Takes 27 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width27 mm
Case diameter42 mm
Reference81020-11-131-BB6A
FamilyLaureato
MovementGirard-Perregaux caliber GP03300-0137 hours, minutes, seconds | date | Chronograph
Year2018
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

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

The Laureato 81020-11-131-BB6A, seen from the bench

The Girard-Perregaux Laureato 42 Chronograph (ref. 81020-11-131-BB6A) features a stainless steel case of 42 mm with an integrated bracelet and octagonal bezel. The lug width is 27 mm. It houses the GP03300-0137 chronograph movement, an in-house caliber that controls hours, minutes, seconds, date and chronometer function. Satin finishes and precise construction reflect Swiss watchmaking standards.

Frequently asked questions

What is the lug width of the Girard-Perregaux Laureato 81020-11-131-BB6A?

The lug width of the Girard-Perregaux Laureato 81020-11-131-BB6A is 27 millimetres. This dimension represents the internal space between the lugs of the case and is essential for selecting compatible straps. In artisanal watchmaking, this technical specification ensures perfect fit and harmonious load distribution on the case.

Which type of strap do you recommend for the Laureato 42mm?

We recommend alligator straps with vegetable tanning for formal contexts, vegetable-tanned calf leather for daily use with chromatic evolution over time, NATO in cordura for sports practicality, and FKM rubber for aquatic environments. The choice depends on your intended use: the integrated chronograph suggests versatility, so alternating multiple straps maximises the model's wearability.

How do you change the strap on a Girard-Perregaux Laureato?

Position the watch on a protected, flat surface. Using a spring bar tool, apply gentle pressure on the lower lug pin, creating slight play. Insert the new strap into the space created, aligning the lug with the case, and release pressure. If uncertain, consult a professional to avoid damage to the case or pins.

What is the difference between an original Girard-Perregaux strap and a 27mm aftermarket alternative?

The original strap is developed within the Laureato project and reflects the exact proportions intended by the case. Quality artisanal aftermarket straps (such as those from Milano Straps) often feature more refined materials (alligator, shell cordovan), bespoke construction, and superior longevity thanks to geometric stitching and vegetable leather backing.

How long does a vegetable-tanned leather strap last on a daily-worn watch?

A calf leather strap with vegetable tanning, if properly maintained and protected from prolonged humid environments, lasts 4-7 years with daily wear. Alligator tends to last 6-10 years. Longevity depends on wear frequency, exposure to water and UV, maintenance, and quality of finishes. Milano Straps uses selected leathers that age nobly rather than degrade.

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