Breitling · Avenger

Strap for Avenger Seawolf Stainless Steel / Grey

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter45 mm
ReferenceA1733010.F538
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

The Avenger A1733010.F538, seen from the bench

The Breitling Avenger A1733010.F538 is a 45.40mm stainless steel tool watch designed for extreme operational conditions in military and aviation environments. It features a unidirectional bezel, screw-down crown with protection, and is water-resistant to 300 metres. The automatic Breitling Calibre 17 movement, derived from ETA 2824-2, offers hours, minutes, seconds, and date with approximately 38 hours power reserve at 28,800 vph. The lug width is 20mm, enabling standard aftermarket strap compatibility without adapters.

Frequently asked questions

What is the lug width of the Breitling Avenger A1733010.F538?

The lug width of the Breitling Avenger A1733010.F538 is 20mm. Despite the substantial 45.40mm case diameter, the gap between the lugs measures exactly 20mm, making it compatible with a wide range of standard straps without the need for any adapters.

What is the best strap for the Breitling Avenger A1733010.F538?

The ideal strap for the Breitling Avenger A1733010.F538 depends on the intended use. A padded alligator strap in black or tobacco brown with vegetable tanning suits formal and business settings, complementing the case's imposing presence. For sporting or field use, a vulcanised rubber strap or a ballistic nylon NATO maintains both durability and visual coherence with the watch's military character.

How do you change the strap on the Breitling Avenger A1733010.F538?

The strap on the Breitling Avenger A1733010.F538 is replaced using a springbar tool to compress the 20mm spring bars within the lug slots. Care should be taken to avoid scratching the brushed steel surfaces of the case. If in doubt, it is advisable to consult a watchmaker or visit the Casati Milano atelier for a professional fitting.

Are there aftermarket straps compatible with the Breitling Avenger A1733010.F538?

Yes, the Breitling Avenger A1733010.F538 accepts any aftermarket strap with a 20mm lug width. Milano Straps offers a curated selection of handcrafted straps in alligator, vegetable-tanned calf leather, shell cordovan and rubber, all fitted with standard 20mm spring bars fully compatible with the original lugs of this reference.

How long does a leather strap last on a Breitling Avenger A1733010.F538?

The lifespan of a leather strap depends on hide quality, maintenance and frequency of use. A high-quality handcrafted alligator or shell cordovan strap, occasionally treated with a neutral leather cream and kept away from prolonged water exposure, can last between 3 and 7 years while developing an attractive natural patina. Casati Milano straps carry an 18-month production defect warranty.

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