Breitling · Avenger

Strap for Avenger II Seawolf Stainless Steel / Volcano Black / Calf / Pin

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
ReferenceA1733110/BC31/435X/A20BASA.1
FamilyAvenger
MovementBreitling caliber 17 hours, minutes, seconds | date
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 A1733110/BC31/435X/A20BASA.1

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Avenger A1733110/BC31/435X/A20BASA.1, seen from the bench

The Breitling Avenger II Seawolf A1733110/BC31/435X/A20BASA.1 is a 45mm stainless steel sports watch developed for special forces and military aviation operations. It features a sapphire crystal with anti-reflective coating, a screw-down crown with integrated asymmetric guard, and water resistance to 300 meters. The dial prioritizes legibility with SuperLuminova-treated indices and broad hands. The watch is powered by the Breitling Caliber 17, an automatic movement with COSC certification and power reserve display. The 22mm lug width accommodates a wide range of replacement straps while maintaining visual balance with the case diameter.

Frequently asked questions

What is the lug width of the Breitling Avenger A1733110/BC31/435X/A20BASA.1?

The lug width of the Breitling Avenger A1733110/BC31/435X/A20BASA.1 is 22mm. This measurement is taken internally between the two lugs using a digital calliper at the point where the strap attaches. Adhering to this measurement is essential to ensure a proper fit when replacing the strap.

What is the best strap for the Breitling Avenger A1733110/BC31/435X/A20BASA.1?

The ideal strap for the Breitling Avenger A1733110/BC31/435X/A20BASA.1 depends on the intended use. For formal occasions, a matte alligator strap creates a refined contrast with the stainless steel case. For outdoor or sport use, a vulcanised rubber strap is the most technically coherent choice. A vegetable-tanned calf leather strap suits those who appreciate the development of a natural patina over time.

How do you change the strap on the Breitling Avenger A1733110/BC31/435X/A20BASA.1?

To replace the strap on the Breitling Avenger A1733110/BC31/435X/A20BASA.1, you will need a fine-tipped spring bar tool. Insert the tool into the designated slot of the spring bar, compress the spring and slide the bar out of the lug hole. Remove the old strap and fit the new one, ensuring that the spring bars are correctly seated in both lug holes before releasing pressure.

Are there aftermarket straps compatible with the Breitling Avenger A1733110/BC31/435X/A20BASA.1?

Yes, any strap with a 22mm attachment width is compatible with the Breitling Avenger A1733110/BC31/435X/A20BASA.1. Milano Straps offers a curated selection of handcrafted leather, rubber and fabric straps made specifically for this size. Given the relatively short lugs of this 45mm case, it is advisable to select straps with an appropriate end thickness.

How long does a leather strap last on the Breitling Avenger A1733110/BC31/435X/A20BASA.1?

The lifespan of a leather strap depends on the quality of the hide, the craftsmanship and frequency of use. A high-quality vegetable-tanned calf strap, worn in rotation and stored correctly, typically lasts between two and four years. A well-maintained alligator strap can exceed five years of use. Milano Straps provides an 18-month warranty against manufacturing defects on all their straps.

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