Technical Archive

Breitling
Colt A7438953.BD82.178A— lug 18mm

Breitling Colt A7438953.BD82.178A: 18mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Colt 36 Diamond / Volcano Black / Bracelet

Artisanal Note

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

Technical Specifications

Breitling A7438953.BD82.178A
Lug Width
18 mm

The essential strap measurement.

Browse 18mm straps →
Reference

A7438953.BD82.178A

Movement

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

The Heritage

The Breitling Colt A7438953.BD82.178A is a 36mm stainless steel tool-watch with 18mm lug width, featuring a COSC-certified quartz B74 caliber offering precision within ±0.07 seconds per day. The brushed and polished case houses a functional dial with hours, minutes, seconds, and date. Originally designed for armed forces and special operations, the Colt maintains its instrumental character while remaining discrete on the wrist.

FAQ

What is the lug width of the Breitling Colt A7438953.BD82.178A?

The Breitling Colt A7438953.BD82.178A has a lug width of 18mm. This measurement determines compatibility with any replacement strap: an 18mm strap will attach correctly to the case without modification.

What is the best strap for the Breitling Colt A7438953.BD82.178A?

For the 36mm steel Colt, a vegetable-tanned calf leather strap with a standard steel buckle is the most balanced choice for everyday wear. For formal occasions, a matte alligator strap highlights the COSC-certified B74 calibre. In sporting or maritime contexts, a nylon NATO or vulcanised rubber strap honours the model's tool-watch heritage.

How do you change the strap on a Breitling Colt A7438953.BD82.178A?

Remove the strap using a spring bar tool inserted into the lug hole, compressing the spring bar to release it. Take care to protect the stainless steel case with a soft cloth to avoid scratches. Work on a stable, padded surface. Fitting the new strap is the reverse process: insert the spring bars and ensure they click securely into the lug holes.

Are there aftermarket straps compatible with the Breitling Colt A7438953.BD82.178A?

Yes. The 18mm lug width is a well-documented standard measurement, compatible with a wide range of quality aftermarket straps. Milanostraps.it offers a curated selection of handcrafted 18mm straps made in Milan, available in calf leather, alligator, shell cordovan and NATO weaves, with standard buckle or deployant clasp options.

How long does a leather strap last on the Breitling Colt A7438953.BD82.178A?

Longevity depends on the material and frequency of use. A quality vegetable-tanned calf strap, maintained with regular cleaning and neutral leather conditioner, typically lasts 2–4 years with daily wear. Shell cordovan, due to its dense fibre structure, tends to outlast standard calf. Alligator, properly conditioned, retains its scale definition and sheen for 3–5 years. Casati Milano provides an 18-month guarantee against manufacturing defects.