Breitling · Superocean Heritage

Strap for Superocean Heritage II 42 Stainless Steel / Black / Black / Rubber / Folding

Takes 22 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width22 mm
Case diameter42 mm
ReferenceAB2010121B1S1 (aka: AB201012/BF73/279S/A20D.4)
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 AB2010121B1S1 (aka: AB201012/BF73/279S/A20D.4)

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Superocean Heritage AB2010121B1S1 (aka: AB201012/BF73/279S/A20D.4), seen from the bench

The Breitling Superocean Heritage AB2010121B1S1 is a 42mm stainless steel and black ceramic diver watch featuring the automatic B20 movement with 70-hour power reserve and COSC chronometer certification. Water-resistant to 200 metres, it combines unidirectional ceramic bezel, applied indices, and screw-down crown for authentic functionality. The 22mm lug width accommodates various strap materials, from rubber for water sports to leather for formal settings.

Frequently asked questions

What is the lug width of the Breitling Superocean Heritage AB2010121B1S1?

The Breitling Superocean Heritage AB2010121B1S1 features a lug width of 22mm. This measurement should be taken with a millimetre calliper across the inner distance between the two lugs at the base of the case. All compatible straps must have a 22mm head with standard taper towards the buckle end.

What is the best strap for the Breitling Superocean Heritage AB2010121B1S1?

The ideal choice depends on intended use. For a formal register, a navy or black alligator strap with a steel deployant clasp complements the ceramic case beautifully. For a vintage-coherent aesthetic consistent with the heritage DNA, vegetable-tanned calf leather in cognac or tobacco is the most narratively compelling option. For sports or marine use, a vulcanised rubber strap delivers optimal performance. A NATO nylon strap remains the most historically accurate choice for a diver tool watch.

How do I change the strap on the Breitling Superocean Heritage AB2010121B1S1?

To replace the strap, use a fine-tipped springbar tool: insert the tip into the lug slot and compress the springbar inward to release it from the lug hole. Repeat on both sides. Given the 22mm lug width and Breitling's lug profile, a thin-tipped springbar tool is recommended to avoid scratching the case finishing.

Is there an aftermarket strap compatible with the Breitling Superocean Heritage AB2010121B1S1?

Yes. Any aftermarket strap with a 22mm head and standard springbars is compatible with the Breitling Superocean Heritage AB2010121B1S1. Milano Straps offers a curated selection of Italian handcrafted straps in leather, alligator, shell cordovan and rubber, all cut to 22mm with bespoke finishing options designed to complement the colour schemes of the Superocean Heritage range.

How long does a leather strap last on a Breitling Superocean Heritage AB2010121B1S1?

Longevity depends on the leather type, frequency of wear and exposure to perspiration and moisture. A vegetable-tanned calf strap worn daily typically lasts 18 to 24 months before patina becomes structural wear. Shell cordovan, owing to its dense fibre structure, can last 3 to 5 years with appropriate conditioning. Alligator leather, when maintained with dedicated products, offers comparable longevity to cordovan. Milano Straps products carry an 18-month warranty 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