Technical Archive

Breitling
Colt A7438953.A772.414X— lug 18mm

Breitling Colt A7438953.A772.414X: 18mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Colt 36 Diamond / Pearl / Calf

Artisanal Note

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

Technical Specifications

Breitling A7438953.A772.414X
Lug Width
18 mm

The essential strap measurement.

Browse 18mm straps →
Reference

A7438953.A772.414X

Movement

Breitling caliber Caliber B74 Hours, Minutes, Seconds | Date | Chronometer

The Heritage

The Breitling Colt A7438953.A772.414X is a 36mm stainless steel instrument watch that returns the Colt collection to its military and functional roots. Powered by the Breitling B74 caliber with COSC chronometer certification (precision -4 to +6 seconds per day), the dial displays hours, minutes, seconds, and date without decorative excess. The 18mm lug width is a precise design choice that determines the visual proportion of the entire assembly and is compatible with a wide range of straps from premium leather to technical fabrics.

FAQ

What is the lug width of the Breitling Colt A7438953.A772.414X?

The lug width of the Breitling Colt A7438953.A772.414X is 18mm. This measurement is taken with a digital calliper positioned between the inner faces of the lugs at the strap attachment point. It is a precise design specification that governs the overall proportional balance of the watch on the wrist.

What is the best strap for the Breitling Colt A7438953.A772.414X?

For the Breitling Colt A7438953.A772.414X, the most coherent choices relative to the model's character are shell cordovan for its evolving patina, hornback alligator with a matte finish for formal wear, vegetable-tanned calf leather for daily use, and ballistic nylon NATO to reference the collection's military heritage. The correct lug width is 18mm.

How do you change the strap on a Breitling Colt A7438953.A772.414X?

The strap on the Breitling Colt A7438953.A772.414X is secured by standard springbars, which can be released using a curved-tip springbar tool. Work on a soft surface to protect the case and lugs from scratching. The operation takes under two minutes and does not require professional watchmaking tools.

Are there aftermarket straps compatible with the Breitling Colt A7438953.A772.414X?

Yes. Any strap with an 18mm lug width and standard length (approximately 115/75mm or 120/80mm) is compatible with the Breitling Colt A7438953.A772.414X, provided the strap end profile is straight or slightly tapered. Milanostraps.it offers a curated selection of handcrafted 18mm straps by Casati Milano, with bespoke customisation available.

How long does a leather strap last on a Breitling Colt?

A quality leather strap — alligator, shell cordovan or vegetable-tanned calf — on a Breitling Colt typically lasts between 2 and 5 years with daily use, depending on exposure to perspiration, water and UV radiation. Casati Milano straps carry an 18-month manufacturing warranty. Regular conditioning with a specialist leather cream will significantly extend the life of the strap.