Breitling · Superocean Heritage

Strap for Superocean Heritage II B01 Chronograph 44 Stainless Steel / Green / Mesh

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

Lug width22 mm
Case diameter44 mm
ReferenceAB01621A1L1A1
FamilySuperocean Heritage
MovementBreitling caliber B01 hours, minutes, small seconds | date | Chronograph, column wheel | chronometer
Year2020
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 AB01621A1L1A1

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Superocean Heritage AB01621A1L1A1, seen from the bench

The Breitling Superocean Heritage II B01 Chronograph 44 is a 44mm stainless steel diver watch featuring a unidirectional ceramic bezel, applied indices, and screw-down crown. Powered by the in-house Breitling Caliber B01 chronograph movement with 28,800 vph, 70-hour power reserve, and column wheel mechanism, it offers water resistance to 200 meters. The 22mm lug width accommodates Milano Straps' compatible strap collection for this heritage diving instrument.

Frequently asked questions

What is the lug width of the Breitling Superocean Heritage AB01621A1L1A1?

The Breitling Superocean Heritage AB01621A1L1A1 has a lug width of 22mm. This measurement refers to the internal distance between the case lugs and is the critical specification when selecting a compatible strap. A strap of a different width — even by 1–2mm — will not fit correctly and may compromise both the aesthetic result and the security of the attachment.

What is the best strap for the Breitling Superocean Heritage AB01621A1L1A1?

The ideal strap depends on intended use and personal style. For everyday and formal wear, vegetable-tanned calfskin or alligator in tobacco or navy tones complement the dial without overpowering it. For sportier or more casual use, a ballistic nylon NATO or vulcanised rubber strap is the most practical and functional choice. In all cases, the 22mm lug width is the non-negotiable technical specification.

How do you change the strap on a Breitling Superocean Heritage AB01621A1L1A1?

The strap on the Superocean Heritage is secured by standard spring bars seated in the case lugs. Using a springbar tool, compress the spring bar ends to release the existing strap. It is advisable to work on a soft surface to avoid scratching the case. Fitting a new 22mm strap is straightforward by reversing the procedure, no special tools or watchmaker assistance required.

Are there aftermarket straps compatible with the Breitling Superocean Heritage AB01621A1L1A1?

Yes. Any strap with a 22mm lug width is technically compatible with the Superocean Heritage AB01621A1L1A1, regardless of manufacturer. Milano Straps offers a curated range of handcrafted 22mm straps in various materials — calfskin, alligator, NATO, rubber — all fitted with standard spring bars for direct mounting without any modification to the original case.

How long does a leather strap last on a diver such as the Breitling Superocean Heritage?

The lifespan of a leather strap on a dive watch depends primarily on exposure to water and perspiration. With regular daily wear and no immersion, a quality vegetable-tanned leather strap typically lasts between two and four years before the internal structure loses its rigidity. To extend longevity, it is recommended to rotate between multiple straps, remove the strap during prolonged water exposure, and treat it periodically with a leather conditioning cream.

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