Breitling · Avenger

Strap for Super Avenger II Stainless Steel / Volcano Black / Calf / Folding

Takes 24 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width24 mm
Case diameter48 mm
ReferenceA1337111/BC28/440X/A20D.1
FamilyAvenger
MovementBreitling caliber 13 hours, minutes, small seconds | date | Chronograph
Year2013
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 Avenger A1337111/BC28/440X/A20D.1

Selected for the 24 mm lug width · workshop selection

All 24 mm straps →

The Avenger A1337111/BC28/440X/A20D.1, seen from the bench

The Avenger Seawolf Chronograph A1337111/BC28/440X/A20D.1 is a 48mm stainless steel professional dive watch certified COSC, designed for extreme environments and underwater operations to 300 meters depth. It features Breitling's internal Caliber 13 automatic chronograph movement with 25 jewels, bidirectional rotor, and 42-hour power reserve. The unidirectional steel bezel, oversized crown, screw-down caseback with inspection windows, and anti-reflective sapphire crystal define its instrument-grade construction. The 24mm lug width maintains proportional balance with the case diameter, ensuring clean lines and solid mechanical attachment.

Frequently asked questions

What is the lug width of the Breitling Avenger A1337111/BC28/440X/A20D.1?

The lug width of the Breitling Avenger A1337111/BC28/440X/A20D.1 is 24mm. This is a non-standard measurement in the watchmaking landscape, directly proportional to the 48mm case diameter. To verify it on your own piece, use a calliper to measure the internal distance between the two lugs where the strap inserts.

What is the best strap for the Breitling Avenger A1337111/BC28/440X/A20D.1?

The optimal choice depends on the context of use. For formal or business settings, alligator leather with hornback grain or vegetable-tanned calf in tobacco tones offer the best aesthetic balance with the steel case. For sport or marine use, vulcanised rubber or ballistic nylon NATO straps provide resistance and water impermeability. A 24mm steel deployant clasp is recommended for mechanical security given the considerable weight of the case.

How do you change the strap on the Breitling Avenger A1337111/BC28/440X/A20D.1?

The strap is replaced using a spring bar tool to remove the 24mm spring bars housed in the lugs. It is advisable to rest the watch on a soft cloth to protect the sapphire crystal and the satin-finished surfaces of the case. Care should be taken with the Avenger's lugs, which feature a pronounced curvature: always verify that the spring bars are correctly seated before wearing the watch.

Are there aftermarket straps compatible with the Breitling Avenger A1337111/BC28/440X/A20D.1?

Yes. Any strap with a 24mm attachment width and standard taper (typically 22mm at the buckle end) is compatible with the Avenger A1337111/BC28/440X/A20D.1. It is also important to verify the overall strap length (generally 75mm on the buckle side and 115mm on the keeper side for average wrists) and the end curvature, which on large-diameter cases may require a straight or slightly curved profile depending on the lug design.

How long does a leather strap last on a Breitling Avenger A1337111/BC28/440X/A20D.1?

The lifespan of a leather strap depends on the quality of the hide, edge finishing and daily use. A handcrafted vegetable-tanned calf strap, used regularly but not submerged or exposed to heavy rain, will maintain structural integrity and appearance for 2 to 4 years. Cordovan and alligator, due to fibre density and surface treatment, tend to last considerably longer. Rotating between two straps extends the life of both, as leather recovers its shape and consistency between uses.

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