Breitling · Avenger

Strap for Avenger II Seawolf Stainless Steel / Volcano Black / Rubber

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/BC31/131S
FamilyAvenger
MovementBreitling caliber Caliber 17 Hours, Minutes, Seconds | Date
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/BC31/131S

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Avenger A1733110/BC31/131S, seen from the bench

The Breitling Avenger II Seawolf A1733110/BC31/131S is a tool watch built for extreme conditions, featuring a 45mm stainless steel case and COSC-certified Breitling Caliber 17 automatic movement. The model is water-resistant to 300 meters and equipped with a unidirectional bezel, screw-down crown, and luminescent applied indices for low-light readability. The 22mm lug width accommodates compatible straps and reflects the watch's integrated, functional design philosophy balancing robustness with wearability.

Frequently asked questions

What is the lug width of the Breitling Avenger A1733110/BC31/131S?

The lug width of the Breitling Avenger A1733110/BC31/131S is 22mm. This measurement should be taken with a digital calliper inside the fork, at the narrowest point between the two lugs, to ensure a precise fit with no lateral play.

What is the best strap for the Breitling Avenger A1733110/BC31/131S?

The ideal choice depends on the intended use. For daily wear and semi-formal settings, a tapered 22mm vegetable-tanned calfskin strap is a refined option. For water-related or high-activity use, a high-density rubber strap is the most coherent choice given the 300m water resistance rating. A bombé alligator strap suits those seeking a more haute horlogerie aesthetic.

How do you change the strap on a Breitling Avenger A1733110/BC31/131S?

To replace the strap on the Breitling Avenger A1733110/BC31/131S, use a fine-tipped or forked spring bar tool. The spring bars are standard 22mm. Insert the tool tip into the lug slot, compress the spring bar and slide the strap free. Reassembly is the reverse process. Take care not to scratch the polished or brushed lug surfaces.

Are there aftermarket straps compatible with the Breitling Avenger A1733110/BC31/131S?

Yes. The Breitling Avenger A1733110/BC31/131S uses standard 22mm spring bar lugs, making it compatible with any quality aftermarket strap of the same width. Milano Straps offers a curated range of handcrafted leather, alligator, rubber and NATO straps in 22mm, produced to measure and supplied with correctly sized spring bars for this specific model.

How long does a leather strap last on a Breitling Avenger A1733110/BC31/131S?

The lifespan of a leather strap depends on hide quality, frequency of wear and exposure to perspiration and moisture. A high-grade vegetable-tanned calfskin strap, rotated every two to three days and conditioned every three to four months, can last between three and five years while retaining its structural integrity. The patina that develops over time is considered an aesthetic asset rather than a flaw.

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