Breguet · Pilot

Strap for Type 20 Chronograph

Takes 21 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width21 mm
Case diameter42 mm
Reference2057ST/92/3WU
FamilyPilot
MovementBreguet caliber 7281 Hours, Minutes, Small Seconds | Date | Chronograph, Column wheel, Flyback
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 Pilot 2057ST/92/3WU

Selected for the 21 mm lug width · workshop selection

All 21 mm straps →

The Pilot 2057ST/92/3WU, seen from the bench

The Breguet Type XX Pilot 2057ST/92/3WU is a chronograph born from 1950s military aviation requirements, featuring the in-house Breguet 7281 caliber with column wheel and flyback function. The 42mm stainless steel case houses a legible dial with applied indices and permanent small seconds at 6 o'clock. This model features a 21mm lug width, an unconventional size that distinguishes it from standard pilot watches and requires compatible straps.

Frequently asked questions

What is the lug width of the Breguet Pilot 2057ST/92/3WU?

The lug width of the Breguet Pilot 2057ST/92/3WU is 21mm. This is a non-standard measurement within the pilot watch segment: Breguet deliberately opted for 21mm to distinguish the Type XX from competing models typically featuring 20mm or 22mm lug widths. When sourcing a replacement strap, it is essential to use only straps with a 21mm head width, verifying compatibility with a calliper before purchase.

What is the best strap for the Breguet Pilot 2057ST/92/3WU?

The most suitable strap options for the Breguet Pilot 2057ST/92/3WU include vegetable-tanned calf leather, which develops a natural patina over time in keeping with the aeronautical spirit of the Type XX, and alligator leather for formal occasions. A NATO nylon strap references the original military DNA of the watch, whilst shell cordovan is the premium choice for those seeking durability and moisture resistance without sacrificing aesthetics. The choice between a standard tang buckle and a deployant clasp depends on personal preference for daily wear.

How do you change the strap on the Breguet Pilot 2057ST/92/3WU?

To replace the strap on the Breguet Pilot 2057ST/92/3WU, a springbar tool is required — available from any watchmaker or online retailer. Insert the forked tip of the tool between the strap and the lug, compress the springbar inward and remove the strap. Care must be taken to avoid scratching the steel lugs: it is advisable to protect the case with fabric tape or to consult a watchmaker for initial strap changes. The replacement strap must have a 21mm head width.

Are there aftermarket straps compatible with the Breguet Pilot 2057ST/92/3WU?

Yes, high-quality aftermarket straps compatible with the Breguet Pilot 2057ST/92/3WU are available. The key requirement is a 21mm head width. Milanostraps.it offers a curated selection of handcrafted 21mm straps made in Italy, available in various materials — calf leather, alligator, shell cordovan, NATO and rubber — with bespoke customisation options through the Casati Milano atelier. Quality aftermarket straps do not compromise the integrity of the watch and allow the timepiece to be personalised at a significantly lower cost than original Breguet straps.

How long does a leather strap last on the Breguet Pilot 2057ST/92/3WU?

The lifespan of a leather strap for the Breguet Pilot 2057ST/92/3WU depends primarily on the quality of the tanning process, frequency of use and maintenance. A high-quality vegetable-tanned calf strap, worn regularly but not in sporting conditions, typically lasts between two and four years before showing structural wear. Alligator leather tends to last longer due to the density of its fibres, whilst shell cordovan offers exceptional moisture resistance. Regular conditioning with a suitable leather cream and rotating between straps will considerably extend the product's lifespan.

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