Breitling · Superocean Heritage

Strap for Superocean Heritage II 46 Chronograph Stainless Steel / Black / Black / Rubber / 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/BF78/256S/A20D.4
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/BF78/256S/A20D.4

Selected for the 24 mm lug width · workshop selection

All 24 mm straps →

The Superocean Heritage A1331212/BF78/256S/A20D.4, seen from the bench

The Breitling Superocean Heritage II 46 Chronograph (A1331212/BF78/256S/A20D.4) represents the contemporary evolution of a diving legend created in the 1950s. This 46 mm stainless steel case houses the Breitling Caliber 13 manual-wind chronograph movement with date, hours, minutes and small seconds functions, certified COSC. The monodirectional ceramic bezel ensures scratch resistance, the sapphire crystal features anti-reflective treatment for underwater readability, and the watch is water-resistant to 200 metres. The 24 mm lug width follows the heritage diving and aviation watch tradition, providing superior wrist stability through balanced weight distribution.

Frequently asked questions

What is the lug width of the Breitling Superocean Heritage A1331212/BF78/256S/A20D.4?

The lug width of the Breitling Superocean Heritage A1331212/BF78/256S/A20D.4 is 24 millimetres. This measurement is standard for contemporary-generation Superocean Heritage models and requires straps specifically manufactured at this width. To verify compatibility, measure the distance between the two pins that insert into the case lugs: it must correspond exactly to 24 millimetres.

Which strap do you recommend for this Breitling model?

For the Superocean Heritage A1331212/BF78/256S/A20D.4, we recommend an alligator strap dyed in dark tones (black, dark brown, or cordovan) for those seeking authentic luxury, or vegetable-tanned calf leather for those who value the natural development of patina over time. For more sporting and tactical use, a structured rubber or NATO textile in 24 millimetres offers practicality and resistance to moisture. The choice depends on your primary use and the dial colour of your timepiece.

How do you change the strap on a Breitling watch?

To change the strap, position the watch on a soft surface with the caseback facing upward. Locate the spring bar (pin) connecting the lug to the case: use a dedicated tool with two small prongs to press both sides of the pin, thereby releasing one end of the lug. Repeat on the second pin. Insert the new strap by aligning the lug holes with the case pins and press until you hear the locking click. Ensure that the <a href="/pages/termine-glossario/deployante">deployante</a> or buckle is firmly secured.

Can I use an aftermarket strap compatible with my Superocean Heritage A1331212?

Absolutely. Quality aftermarket straps, manufactured with specific attention to the 24-millimetre lug width, are perfectly compatible with the Superocean Heritage A1331212/BF78/256S/A20D.4. Verify that the strap has been deliberately designed for this width and that it features an appropriate deployante or buckle suitable for the watch's weight (a tool watch of 46 millimetres requires a robust buckle). Artisanal leather straps with vegetable tanning offer superior aesthetic versatility compared to the original sports strap.

How long does a leather strap last on a tool watch like the Superocean Heritage?

A quality leather strap, crafted with vegetable tanning and artisanal construction, typically lasts between 3 and 6 years of daily wear, depending on frequency of use and moisture exposure. The Superocean Heritage is a diving instrument and it is not advisable to wear a leather strap during submersions or prolonged water exposure. Leather deteriorates more rapidly if constantly exposed to moisture. With alternating use (leather in dry season, rubber or NATO in humid season), lifespan can reach 8–10 years. An 18-month warranty covers 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