Breitling · Superocean Heritage

Strap for Superocean Heritage II 46 Stainless Steel / Black / Black / Bracelet

Takes 24 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width24 mm
Case diameter46 mm
ReferenceAB2020121B1A1 (aka: AB202012.BF74.152A)
FamilySuperocean Heritage
MovementBreitling caliber B20 hours, minutes, seconds | date | chronometer
Year2017
CaseCeramic, Stainless 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 Superocean Heritage AB2020121B1A1 (aka: AB202012.BF74.152A)

Selected for the 24 mm lug width · workshop selection

All 24 mm straps →

The Superocean Heritage AB2020121B1A1 (aka: AB202012.BF74.152A), seen from the bench

The Superocean Heritage is equipped with the automatic caliber B20 with chronometer certification, displaying hours, minutes, seconds and date. The case features 24mm lugs. The movement offers certified chronometer functions with date display.

Frequently asked questions

What is the lug width of the Breitling Superocean Heritage AB2020121B1A1?

The Breitling Superocean Heritage 46 (ref. AB2020121B1A1) has a lug width of 24mm. This measurement, best verified with a digital calliper between the lugs near the crystal, determines aftermarket strap compatibility: only straps with a 24mm head width should be selected.

What is the best strap for the Breitling Superocean Heritage AB2020121B1A1?

For the Superocean Heritage 46, the most appropriate materials are bombé alligator in deep tones (abyss blue, black, dark brown) for a formal look, vegetable-tanned calf leather for those seeking a noble patina over time, or vulcanised rubber and ballistic nylon NATO for maintaining the watch's original sporting and marine vocation. A brushed steel deployant clasp is recommended to preserve the leather over time.

How do you change the strap on a Breitling Superocean Heritage AB2020121B1A1?

Strap replacement requires a spring bar tool with a fine 0.8mm tip. Insert the tip into the spring bar slot at the lug end, compress the spring mechanism and slide the strap laterally. The operation does not require opening the caseback or professional tools, but it is advisable to work on a soft surface to avoid scratching the steel case or ceramic bezel.

Are there aftermarket straps compatible with the Breitling Superocean Heritage AB2020121B1A1?

Yes. Any strap with a 24mm head width and a tail compatible with the chosen buckle or deployant clasp can be fitted to the Superocean Heritage AB2020121B1A1. Milano Straps offers a curated selection of handcrafted 24mm straps in various materials and finishes, produced by the Casati Milano atelier with an 18-month guarantee against manufacturing defects.

How long does a leather strap last on a Breitling Superocean Heritage used in marine environments?

Under frequent exposure to salt water, perspiration and sunlight, a leather strap — even in high-quality alligator or vegetable-tanned leather — has an average lifespan of 12 to 24 months before showing structural deterioration at the buckle fold. For intensive marine use, vulcanised rubber or ballistic nylon NATO straps are recommended, reserving fine leather for dry environments. Regular treatment with a neutral leather conditioner significantly extends strap life.

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.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only