Bremont · ALT1

Strap for ALT1-Z Zulu 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
ReferenceALT1ZBKbr
FamilyALT1
MovementBremont caliber BE-54AE Additional 24 Hour Hand (adjustable), 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 ALT1ZBKbr

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The ALT1 ALT1ZBKbr, seen from the bench

The Bremont ALT1-Z is a 43mm stainless steel chronograph designed for aviation instrumentation. Featuring the patented Trip-Tick® crown mechanism to prevent accidental operation in flight, it houses the in-house Bremont BE-54AE movement with COSC chronometer certification. The watch includes 24-hour hand, chronograph, date, and small seconds functions. The 22mm lug width ensures proper proportions between case and wrist ergonomics.

Frequently asked questions

What is the lug width of the Bremont ALT1ZBKbr?

The lug width of the Bremont ALT1ZBKbr is 22mm. This dimension has been precisely calibrated by Bremont's engineers to maintain correct proportions between the 43mm case and wrist ergonomics. Any compatible strap must respect this measurement exactly to avoid lateral play or excessive tension.

Which strap is recommended for the Bremont ALT1ZBKbr?

For the Bremont ALT1ZBKbr, we recommend an alligator or vegetable-tanned calf leather strap in brown or black tones to maintain the watch's avionic character. A nylon ballistic NATO strap offers a versatile alternative for daily wear. For humid or underwater environments, an FKM rubber strap is the ideal choice.

How do I change the strap on the Bremont ALT1ZBKbr?

The Bremont ALT1ZBKbr features quick-release bars (spring bars) housed within the lugs. Use a dedicated removal tool—a thin metal or plastic implement—to apply gentle pressure to the lateral springs, releasing the bar. Once removed, insert the new strap and reposition the bar, verifying lock engagement with light pressure.

Can I use an aftermarket strap on the Bremont ALT1ZBKbr?

Yes, you can absolutely use quality aftermarket straps on the Bremont ALT1ZBKbr, provided the lug width is precisely 22mm. Milano Straps offers a dedicated collection of 22mm straps in premium materials—alligator, calf, NATO, rubber—verified for mechanical and aesthetic compatibility with ALT1-family chronographs.

How long does a leather strap last on the Bremont ALT1ZBKbr?

A vegetable-tanned calf strap, with proper care, typically lasts 4-6 years of daily wear. An alligator strap, being a denser and more stable leather, can reach 6-8 years. Longevity depends on humidity exposure, perspiration, and maintenance—occasional cleaning with a dry cloth significantly extends strap life.

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.

Request an appointment →

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