Breitling · Superocean Heritage

Strap for Superocean Heritage II 46 Chronograph Stainless Steel / Black / Black / Calf / Folding

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
ReferenceA1331212/BF78/442X/A20D.1
FamilySuperocean Heritage
MovementBreitling caliber Caliber 13 Hours, Minutes, Small Seconds | Date | Chronograph
CaseStainless 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 A1331212/BF78/442X/A20D.1

Selected for the 24 mm lug width · workshop selection

All 24 mm straps →

The Superocean Heritage A1331212/BF78/442X/A20D.1, seen from the bench

The Breitling Superocean Heritage II 46 Chronograph A1331212/BF78/442X/A20D.1 is a contemporary evolution of an iconic dive watch from the 1950s, combining functional robustness, crystal-clear readability, and reliable timekeeping. The 46mm stainless steel case houses the Breitling Caliber 13 automatic movement with vertical chronograph, date indicator, and small seconds at 6 o'clock, offering 42 days of power reserve and 300 meters water resistance. The 24mm lug width is a natural geometric consequence of the 46mm diameter and the proportions between lugs and case.

Frequently asked questions

What is the lug width of the Breitling Superocean Heritage A1331212/BF78/442X/A20D.1?

The lug width of the Breitling Superocean Heritage A1331212/BF78/442X/A20D.1 is 24 millimetres. This dimension is determined by the geometry of the lugs machined into the 46mm case and represents the precise size required for perfect fit to the watch. Correct measurement is performed using a digital calliper positioned perpendicularly between the inner edges of both lugs.

What is the best strap for the Breitling Superocean Heritage A1331212/BF78/442X/A20D.1?

The choice of best strap depends on intended use. For refined daily wear, natural alligator with vegetable tanning develops a desirable patina over time. For recreational diving activities, vulcanised natural or synthetic rubber ensures water resistance and rapid drying. For seasonal versatility, a canvas NATO with genuine leather keeper offers practicality and elevated sportive aesthetic. Calf leather with coarse grain represents the ideal compromise between tactile comfort and sophisticated sportiness.

How do I change the strap on the Breitling Superocean Heritage A1331212/BF78/442X/A20D.1?

Strap replacement is a straightforward operation requiring a dedicated lug spring bar tool or small plastic lever. Insert the tool tip into the notch on the underside of each lug, apply gentle lateral pressure to release the spring bar, then extract the old strap. Position the new strap by aligning the holes with the lugs and press gently until the spring bar clicks firmly into place. Always verify secure attachment before wearing.

Can I use aftermarket compatible straps with the Breitling Superocean Heritage A1331212/BF78/442X/A20D.1?

Absolutely yes. Quality aftermarket straps manufactured to 24mm lug width specification are entirely compatible with the Breitling Superocean Heritage A1331212/BF78/442X/A20D.1. We recommend purchasing from specialised suppliers guaranteeing elevated construction standards, precise lug finishing, and authentic materials. Milano Straps offers straps in natural leather, alligator, and rubber, all verified for geometric compatibility with this model.

What is the typical lifespan of a leather strap for the Breitling Superocean Heritage A1331212/BF78/442X/A20D.1?

Leather strap longevity varies according to material, usage, and maintenance. Natural alligator with vegetable tanning, when maintained with periodic care (damp cloth cleaning, occasional application of neutral oil), typically lasts 3-5 years of continuous daily wear. Calf with coarse grain generally lasts 2-4 years. Vulcanised natural rubber can exceed 5 years if kept dry and protected from prolonged direct sunlight. Visible ageing is natural and desirable, not a defect.

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