Breitling · Avenger

Strap for Avenger B01 Chronograph 45 Stainless Steel / Red Gold / Anthracite / Strap - Folding

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

Lug width22 mm
Case diameter45 mm
ReferenceUB01821A1B1X2
FamilyAvenger
MovementBreitling caliber B01 hours, minutes, small seconds | date | Chronograph, column wheel | chronometer
Year2022
CaseRed Gold, Stainless 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 Avenger UB01821A1B1X2

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Avenger UB01821A1B1X2, seen from the bench

The Breitling Avenger UB01821A1B1X2 is a 45mm two-tone chronograph combining red gold and stainless steel, featuring the certified COSC B01 manufacture movement with 70-hour power reserve and 28,800 vph frequency. The intense black dial, screw-down crown, and angular lugs reflect functional design heritage from 1950s cockpit instruments. With a 22mm lug width, this sports-luxury timepiece balances robust tool-watch construction with noble materials.

Frequently asked questions

What is the lug width of the Breitling Avenger UB01821A1B1X2?

The Breitling Avenger UB01821A1B1X2 has a lug width of 22mm. This measurement, taken with a digital calliper between the two lugs at the point of attachment to the case, is the essential figure for selecting a compatible aftermarket strap without lateral play.

What is the best strap for the Breitling Avenger UB01821A1B1X2?

For the two-tone red gold and steel version of the Avenger, the most suitable materials are polished alligator leather in cognac or dark brown, which complements the gold components, or vegetable-tanned Tuscan calf leather for a sportier aesthetic. Burnished shell cordovan is a refined choice for those seeking a compact, high-lustre finish.

How do you change the strap on the Breitling Avenger UB01821A1B1X2?

To replace the strap, use a fine-tipped spring bar tool. By pressing the internal spring bar within the lugs, the original strap can be removed without scratching the case. The Avenger's lugs are robust and accommodate frequent strap changes without deformation, provided the correct tool is used.

Are there aftermarket straps compatible with the Breitling Avenger UB01821A1B1X2?

Yes. Any strap with a 22mm attachment is technically compatible with the Breitling Avenger UB01821A1B1X2. Milanostraps.it offers a range of handcrafted leather straps in various hides and configurations specifically for the 22mm lug width, with buckle or deployant clasp in steel or PVD finish.

How long does a leather strap last on a 45mm Breitling Avenger?

The lifespan of a leather strap depends on the quality of the tanning, the thickness, and daily use. A high-quality vegetable-tanned Tuscan leather strap, worn regularly on a moderately active wrist, will maintain structural integrity and a well-kept appearance for 2 to 4 years. Perspiration and prolonged water exposure are the primary factors in wear; immersion should be avoided even though the case is rated to 300m water resistance.

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