Breitling · Superocean Heritage

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

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/BF78/441X/A20BA.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/BF78/441X/A20BA.1

Selected for the 24 mm lug width · workshop selection

All 24 mm straps →

The Superocean Heritage A1331212/BF78/441X/A20BA.1, seen from the bench

The Breitling Superocean Heritage 46 Chronograph, reference A1331212/BF78/441X/A20BA.1, features a 46mm stainless steel case with unidirectional bezel and screw-down caseback. It houses the Breitling Caliber 13 chronograph movement with hours, minutes, small seconds, date, and chronograph function. The 24mm lug width accommodates proportionate straps designed for large-format diving watches, ensuring structural integrity and visual balance with the case mass.

Frequently asked questions

What is the lug width of the Breitling Superocean Heritage A1331212/BF78/441X/A20BA.1?

The lug width of the Breitling Superocean Heritage A1331212/BF78/441X/A20BA.1 is 24mm. This dimension is standard for large-format diving watches with a 46mm case diameter. To verify this on your own piece, measure the inner distance between the two lugs using a millimetre calliper.

What is the best strap for the Breitling Superocean Heritage 46mm?

For the Superocean Heritage 46mm with a 24mm lug width, the most appropriate choices are: matte alligator leather with a wide grain for a formal-sport look, vegetable-tanned perforated calfskin for dynamic use, ballistic nylon NATO for a functional military aesthetic, and vulcanised rubber for actual water use. The strap thickness should be at least 3.5mm to remain proportionate to the case.

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

The strap on the Breitling Superocean Heritage is removed using a spring bar tool with a pointed tip. The 46mm model's lugs accept standard 24mm spring bars. It is advisable to work on a soft surface to protect the case. If in doubt, the operation can be carried out by a watchmaker or by requesting assistance from the Casati Milano atelier.

Are there aftermarket straps compatible with the Breitling Superocean Heritage A1331212/BF78/441X/A20BA.1?

Yes. Any 24mm strap with standard spring bar attachment is compatible with the Breitling Superocean Heritage A1331212/BF78/441X/A20BA.1. MilanoStraps offers a selection of handcrafted 24mm straps in various materials and finishes, available bespoke or ready to ship, all compatible with this reference.

How long does a leather strap last on a Breitling Superocean Heritage 46mm?

The lifespan of a leather strap depends on the material and usage. High-quality alligator or vegetable-tanned calfskin leather, with regular care, lasts between 2 and 5 years with daily wear. Moisture and perspiration accelerate deterioration: for a diving watch used in water, it is advisable to alternate with a rubber or NATO strap. MilanoStraps straps 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