Breitling · Superocean Heritage

Strap for Superocean Heritage B31 Automatic 40 Kelly Slater / Bracelet

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

Lug width20 mm
Case diameter40 mm
ReferenceAB31101A1C1A1
FamilySuperocean Heritage
MovementBreitling caliber Caliber B31 Hours, Minutes, Seconds | Date | Chronometer
CaseCeramic, Stainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

The Superocean Heritage AB31101A1C1A1, seen from the bench

The Breitling Superocean Heritage B31 Automatic 40 Kelly Slater features a 40mm stainless steel and ceramic case paired with a 20mm lug width. Powered by the Breitling B31 caliber—a certified chronometer movement—it delivers hours, minutes, seconds, and date with precision measured in fractions of a second per day. The case design reinterprets 1950s dive chronograph aesthetics with modern materials and finishes, combining a clean dial, screw-down caseback, and unidirectional rotating bezel for underwater durability and versatility.

Frequently asked questions

What is the lug width of the Breitling Superocean Heritage AB31101A1C1A1?

The Breitling Superocean Heritage AB31101A1C1A1 has a lug width of 20mm. This measurement refers to the internal distance between the lugs at the strap attachment point and determines compatibility with any aftermarket strap. To verify the measurement on your own piece, it is advisable to use a digital calliper positioned between the lugs at the attachment point.

What is the best strap for the Breitling Superocean Heritage AB31101A1C1A1?

The choice depends on intended use. For formal or semi-formal contexts, a matte alligator or shell cordovan strap in 20mm enhances the steel and ceramic case admirably. For everyday sporting use, vegetable-tanned calf leather with hand-burnished edges offers durability and character. For the watch's original marine vocation, a nylon NATO strap or vulcanised rubber strap are the most functional choices.

How do you change the strap on a Breitling Superocean Heritage AB31101A1C1A1?

The strap is removed using a spring bar tool, inserting the forked tip into the lateral slot of the lug to compress the spring bar. Moderate, controlled pressure should be applied to avoid scratching the case. It is advisable to rest the watch on a soft cloth during the operation. The replacement takes approximately two minutes and requires no professional equipment.

Are there aftermarket straps compatible with the Breitling Superocean Heritage AB31101A1C1A1?

Yes. Any strap with a 20mm attachment width is technically compatible with the Superocean Heritage AB31101A1C1A1. On milanostraps.it, a selection of handcrafted 20mm straps in various materials and finishes is available, fitted with standard 1.8mm spring bars compatible with Breitling's original lugs. For a fully personalised strap, the Casati Milano atelier offers a bespoke service by appointment.

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

The lifespan of a leather strap depends on material quality and frequency of use. A high-quality alligator or shell cordovan strap, properly cared for (avoiding prolonged exposure to salt water and occasionally applying a neutral conditioner), maintains its structural and aesthetic integrity for 3–5 years of daily wear. Vegetable-tanned calf leather has a similar average lifespan, developing a personal patina over time. Casati Milano guarantees its straps for 18 months against manufacturing defects.

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