Breitling · Superocean

Strap for Superocean 42

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

Lug width20 mm
Case diameter42 mm
ReferenceA1736402BA32132S
FamilySuperocean
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 Superocean A1736402BA32132S, seen from the bench

The Superocean is a Breitling dive watch equipped with the automatic caliber 17. The functions include hours, minutes, seconds, and date indication. The reference A1736402BA32132S features a robust construction oriented towards underwater activities.

Frequently asked questions

What is the lug width of the Breitling Superocean A1736402BA32132S?

The Breitling Superocean A1736402BA32132S features a 20mm lug width. This is the measurement to use when selecting compatible aftermarket straps. To verify it, measure the distance between the two lugs at the point where they meet the case back using a digital calliper.

What is the best strap for the Breitling Superocean A1736402BA32132S?

The ideal choice depends on intended use. For aquatic and sporting contexts, a ballistic nylon NATO or a vulcanised rubber strap offer the best functionality. For smart-casual or professional wear, a vegetable-tanned calf leather or an alligator Belly strap with a steel deployant clasp complement the technical character of the case with refined elegance.

How do you change the strap on the Breitling Superocean A1736402BA32132S?

Strap replacement requires a spring bar tool to remove the spring bars from the 20mm lugs. It is advisable to work on a soft surface to avoid scratching the case. If in doubt, entrust the job to a watchmaker or to Casati Milano atelier, where strap fitting is included in the bespoke service.

Are there aftermarket straps compatible with the Breitling Superocean A1736402BA32132S?

Yes. The Superocean A1736402BA32132S uses standard 20mm lugs, making it compatible with a wide range of quality aftermarket straps. Milano Straps offers a dedicated selection in leather, NATO and rubber, all crafted from selected materials and available in the correct 20mm width for this model.

How long does a leather strap last on a Breitling Superocean?

The lifespan of a leather strap depends on the quality of the tanning, frequency of use, and exposure to water and perspiration. A high-quality vegetable-tanned calf strap, worn daily in moderate conditions away from humidity, can last between two and four years while retaining structural and aesthetic integrity. For frequent aquatic use, rubber or NATO straps are strongly recommended.

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