Technical Archive

Breitling
Chronomat 36 U10380591A2U1— lug 18mm

Breitling Chronomat 36 U10380591A2U1: 18mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Chronomat Automatic 36 Stainless Steel / Red Gold - Diamond / MOP / Rouleaux / Boutique Edition

Artisanal Note

"This model requires a precise 18mm lug width to preserve the original sartorial balance."

Technical Specifications

Breitling U10380591A2U1
Lug Width
18 mm

The essential strap measurement.

Browse 18mm straps →
Reference

U10380591A2U1

Movement

Breitling caliber Caliber 10 Hours, Minutes, Seconds | Date | Chronometer

The Heritage

The Chronomat 36 represents the reduced version of the Breitling Chronomat collection. It is equipped with the automatic Caliber 10 with chronometer certification, providing hour, minute, second and date functions. The 36mm case is designed for smaller wrists compared to the standard model.

FAQ

What is the lug width of the Breitling Chronomat 36 U10380591A2U1?

The lug width of the Breitling Chronomat 36 U10380591A2U1 is 18mm. This measurement refers to the internal distance between the two lugs of the case, best measured with a digital calliper. This figure determines compatibility with any aftermarket strap and must be confirmed prior to purchase. The lugs on this reference feature a curved profile, so straps with curved ends are strongly recommended for a flush fit.

What is the best strap for the Breitling Chronomat 36 U10380591A2U1?

For the Breitling Chronomat 36 U10380591A2U1, with its two-tone stainless steel and red gold case and mother-of-pearl dial, a vegetable-tanned alligator strap in chocolate brown or midnight blue offers the most coherent aesthetic pairing. Box-calf leather in cognac suits more understated daily wear, whilst a vulcanised rubber strap is well suited to sporting contexts. A brushed steel deployant clasp completes the two-tone case with satisfying material consistency.

How do you change the strap on the Breitling Chronomat 36 U10380591A2U1?

To replace the strap on the Breitling Chronomat 36 U10380591A2U1, use a spring bar tool to disengage the spring bars securing the original bracelet or strap to the lugs. Given the delicate two-tone finish in steel and red gold, it is advisable to protect the case surface with a soft lint-free cloth during the operation. Alternatively, the procedure can be carried out by a watchmaker or at Casati Milano atelier for a professional result.

Are there aftermarket straps compatible with the Breitling Chronomat 36 U10380591A2U1?

Yes, there are aftermarket straps compatible with the Breitling Chronomat 36 U10380591A2U1. The 18mm lug width is a standard dimension that allows for a broad selection of materials and finishing. It is essential to ensure that the chosen strap features curved ends to properly follow the contoured lug profile of the Chronomat 36. A curated selection of compatible 18mm straps is available on milanostraps.it.

How long does a leather strap last on a Breitling Chronomat 36?

The lifespan of a leather strap on a Breitling Chronomat 36 depends on the quality of the tanning process, the leather thickness and daily usage habits. A high-quality vegetable-tanned alligator strap, properly maintained — cleaned periodically with a suitable leather conditioner and kept away from prolonged moisture — can last between three and seven years whilst retaining an excellent appearance. Casati Milano straps carry an 18-month manufacturing defect warranty.