Breitling · Chronomat 32

Strap for Chronomat 32 Six Nations Ireland

Takes 16 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width16 mm
Case diameter32 mm
ReferenceA773107A1L1A1
FamilyChronomat 32
MovementBreitling caliber 77 hours, minutes, seconds | date | chronometer
Year2025
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 Chronomat 32 A773107A1L1A1

Selected for the 16 mm lug width

All 16 mm straps →

The Chronomat 32 A773107A1L1A1, seen from the bench

The Breitling Chronomat 32 Six Nations Ireland (reference A773107A1L1A1) is a 32mm stainless steel sports watch featuring the Caliber 77 COSC-certified chronometer movement, guaranteeing ±4 seconds per day accuracy with hours, minutes, seconds, and date functions. The polished and satin-finished steel case features a bidirectional bezel with rider tabs and a screw-down crown for water resistance. This model requires a 16mm strap, measured internally between the lugs. The Chronomat 32 maintains the iconic Rouleaux bracelet design and immediate dial readability of the original 1980s pilot's watch while offering balanced proportions suited to smaller wrists.

Frequently asked questions

What is the lug width of the Breitling Chronomat 32 A773107A1L1A1?

The Breitling Chronomat 32 A773107A1L1A1 takes a 16mm strap. This measurement should be taken with a calliper between the two lugs at the point where the strap attaches to the case. Fitting the correct width is essential to ensure proper installation and to protect the lug surfaces from wear.

What is the best strap for the Breitling Chronomat 32 A773107A1L1A1?

For the Chronomat 32 A773107A1L1A1, a 16mm vegetable-tanned alligator or box calf leather strap is the most fitting choice, in keeping with the model's sport-elegant character. A technical nylon NATO strap references the Chronomat's aeronautical origins, while vulcanised rubber is ideal for intensive daily wear.

How do you change the strap on a Breitling Chronomat 32?

To replace the strap on a Breitling Chronomat 32, you will need a dedicated springbar tool — a fine-tipped instrument used to compress the spring bars seated within the lugs. Insert the tip into the lateral slot of the lug, compress the spring bar and slide the strap free. Care must be taken to avoid scratching the case. If in doubt, consult a watchmaker or visit the Casati Milano atelier.

Are there aftermarket straps compatible with the Breitling Chronomat 32 A773107A1L1A1?

Yes, a wide range of aftermarket straps is compatible with the Breitling Chronomat 32 A773107A1L1A1, provided they feature a 16mm lug width and standard spring bars. Milano Straps offers a curated selection of Italian-made 16mm artisan straps, with materials and finishes chosen to complement the steel case of the Chronomat. Bespoke production through Casati Milano allows full customisation of every detail.

How long does a leather strap last on a Breitling Chronomat 32?

The longevity of a leather strap depends on material quality, frequency of use and exposure to perspiration and the elements. A high-quality alligator or vegetable-tanned calf strap, properly cared for, can last between two and five years with regular wear. Avoiding prolonged water exposure and occasionally applying a suitable leather conditioner will significantly extend the strap's life. Milano Straps provides an 18-month warranty against manufacturing defects.

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