Technical Archive

Breitling
Colt A7338011.G597— lug 20mm

Breitling Colt A7338011.G597: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Chrono Colt Silver / Bracelet

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Breitling A7338011.G597
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

A7338011.G597

Movement

Breitling caliber Caliber B73 Foudroyante Seconds, Minutes, Small Seconds | Date | Chronograph | Chronometer

The Heritage

The Breitling Colt A7338011.G597 is a professional instrument watch with a 41.10 mm stainless steel case and 20 mm lug width, designed for demanding operational contexts. Powered by the Breitling Caliber B73 in-house movement, it features a chronograph with foudroyante seconds complication, along with chronograph minutes, small seconds, and date. The watch represents Breitling's philosophy of the chronograph as a mission instrument rather than an ornamental piece.

FAQ

What is the lug width of the Breitling Colt A7338011.G597?

The lug width of the Breitling Colt A7338011.G597 is 20 mm. This measurement is taken at the narrowest point between the two lugs, closest to the case, using a digital calliper or a millimetre ruler. Any strap with a 20 mm attachment width is compatible with this reference.

What is the best strap for the Breitling Colt A7338011.G597?

The ideal choice depends on the intended use. For formal or business contexts, an alligator or vegetable-tanned calfskin strap with a pin buckle or deployant clasp complements the complexity of the Caliber B73. For intensive or sporting use, a ballistic nylon NATO or vulcanised rubber strap provides durability and comfort. The correct width is 20 mm.

How do you change the strap on the Breitling Colt A7338011.G597?

The strap is replaced using a flat-tipped spring bar tool or a dedicated lug tool, applying gentle pressure to release the spring bar housed within the lugs. It is advisable to work on a soft surface to protect the case and crystal. If in doubt, consult a watchmaker or the Casati Milano atelier.

Are there aftermarket straps compatible with the Breitling Colt A7338011.G597?

Yes. Any strap with a 20 mm attachment width and straight ends is compatible with the Breitling Colt A7338011.G597. Milanostraps.it offers a curated selection of handcrafted straps in leather, alligator, NATO and rubber, made with selected materials and hand-stitched, fully compatible with this reference.

How long does a leather strap last on the Breitling Colt A7338011.G597?

The lifespan of a leather strap depends on the material, care routine and frequency of use. A quality vegetable-tanned calfskin strap, conditioned periodically with a suitable leather cream and stored away from excessive moisture, typically lasts 2 to 4 years. Alligator, owing to its denser fibre structure, can last upwards of 5 years with regular use.