Technical Archive

Breitling
Chronomat 32 A773107A1L1A1— lug 16mm

Breitling Chronomat 32 A773107A1L1A1: 16mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Chronomat 32 Six Nations Ireland

Artisanal Note

"This model requires a precise 16mm lug width to preserve the original sartorial balance."

Technical Specifications

Breitling A773107A1L1A1
Lug Width
16 mm

The essential strap measurement.

Browse 16mm straps →
Reference

A773107A1L1A1

Movement

Breitling caliber Caliber 77 Hours, Minutes, Seconds | Date | Chronometer

The Heritage

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.

FAQ

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.