Breitling · Superocean Heritage

Strap for Superocean Heritage II 42 Red Gold / Black / Black / Rubber

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
ReferenceRB2010121B1S1
FamilySuperocean Heritage
MovementBreitling caliber B20 hours, minutes, seconds | date | chronometer
Year2020
CaseRed Gold

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 RB2010121B1S1

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Superocean Heritage RB2010121B1S1, seen from the bench

The Breitling Superocean Heritage II 42 Red Gold (RB2010121B1S1) is a professional diver from the 1950s reinterpreted for modern wear. The 42mm Red Gold case pairs haute horlogerie aesthetics with tool watch functionality, featuring a unidirectional bezel and legible dial. It houses the Caliber B20 movement, a COSC-certified chronometer derived from the Tudor MT5612, offering 70 hours of power reserve. The 22mm lug width accommodates a wide range of compatible straps and reflects the proportions of this generation's Superocean Heritage lineup.

Frequently asked questions

What is the lug width of the Breitling Superocean Heritage RB2010121B1S1?

The Breitling Superocean Heritage RB2010121B1S1 features 22mm lug width. This measurement is taken directly between the two lugs at the point where the strap attaches to the case, and determines the correct width for any compatible replacement strap.

What is the best strap for the Breitling Superocean Heritage RB2010121B1S1?

For the Red Gold version, a matte alligator strap in cognac or bordeaux tones is the most coherent choice given the precious nature of the case. Shell cordovan offers an exceptionally high-grade material alternative. Those wishing to retain the sportive character of the diver may opt for a high-density vulcanised rubber strap, which maintains consistency with the watch's tool watch DNA.

How do you change the strap on a Breitling Superocean Heritage RB2010121B1S1?

Strap replacement requires a spring bar tool to release the spring bars securing the strap to the lugs. It is advisable to work on a soft surface to protect the Red Gold case from scratches. For best results, the operation can be entrusted to a watchmaker or performed carefully following the standard procedure for 22mm lugs.

Are there aftermarket straps compatible with the Breitling Superocean Heritage RB2010121B1S1?

Yes. Any strap with a standard 22mm attachment is technically compatible. milanostraps.it offers a curated selection of handcrafted straps in vegetable-tanned leather, alligator, shell cordovan and rubber, all crafted with 22mm lug width to ensure a proper fit on this reference.

How long does a leather strap last on a Breitling Superocean Heritage RB2010121B1S1?

Longevity depends on the leather type, maintenance and frequency of use. A quality alligator or shell cordovan strap, properly conditioned and kept away from prolonged exposure to water and perspiration, can last between three and seven years. Vegetable-tanned leather straps develop a natural patina over time, improving aesthetically with age.

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