Bremont · ALT1

Strap for ALT1-C Classic Black Bracelet

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter43 mm
ReferenceALT1CBKbr
FamilyALT1
MovementBremont caliber BE-50AE hours, minutes, small seconds | date | Chronograph | chronometer
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the ALT1 ALT1CBKbr

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The ALT1 ALT1CBKbr, seen from the bench

The Bremont ALT1-C Classic Black Bracelet is a 43mm chronograph featuring the patented Trip-Tick case construction and Bremont BE-50AE automatic movement with column-wheel chronograph function. The 316L stainless steel case houses hour, minute, and small-second displays with chronograph subdials and date window, offering 150m water resistance. The 22mm lug width accommodates standard aftermarket straps and is typical for mid-to-large sport and aviation chronographs.

Frequently asked questions

What is the lug width of the Bremont ALT1CBKbr?

The lug width of the Bremont ALT1CBKbr is 22 millimetres. This measurement corresponds to the diameter of the lugs that connect the case to the spring bars and determines compatibility with aftermarket straps. To verify the correct measurement, use a digital calliper positioned between the two lugs, measuring the internal distance between the holes.

Which strap is recommended for the Bremont ALT1CBKbr?

For the Bremont ALT1CBKbr, we recommend alligator straps for an elegant and durable option, vegetable-tanned calf leather with traditional Florentine craftsmanship for an artisanal style that develops patina over time, or NATO straps in polyamide for a tactical and reversible alternative that references RAF heritage. The choice depends on daily use and the desired aesthetic context.

How do I change the strap on the Bremont ALT1CBKbr?

To change the strap on the Bremont ALT1CBKbr, you must remove the two spring bars located at the extremities of the case. Use a dedicated tool—available as a kit with most artisanal straps—to gently compress the spring, extracting the bar from the hole. Repeat for the other lug. Subsequently, insert the new bars into your chosen strap and secure them to the case using the same reverse procedure.

Which aftermarket straps are compatible with the Bremont ALT1CBKbr?

All artisanal straps with 22mm lug width are compatible with the Bremont ALT1CBKbr. On milanostraps.it you will find straps in vegetable-tanned Tuscan leather, alligator, shell cordovan, NATO fabrics, calf leather, and rubber vulcanised straps. Each model can be customised with standard spring bars, guaranteeing perfect adherence to the case.

How long does a leather strap last on the Bremont ALT1CBKbr?

The durability of a leather strap on the Bremont ALT1CBKbr depends on the material and usage. An alligator strap with traditional vegetable tanning lasts typically 5-8 years of daily wear, developing a fascinating patina over time. High-quality calf offers 4-6 years of resistance. Constant exposure to humidity, sweat and UV rays accelerates ageing. Proper maintenance—periodic cleaning and conditioning with natural waxes—significantly extends the life of the strap.

The next step

The right strap isn't chosen. It is built, together.

From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.

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Casati Milano · Via XX Settembre 15, Milan · by appointment only