Breitling · Transocean

Strap for Transocean Chronograph Stainless Steel / Reverse Panda / Calf / Pin

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

Lug width22 mm
Case diameter43 mm
ReferenceAB015212/BF26/435X/A20BA.1
FamilyTransocean
MovementBreitling caliber B01 hours, minutes, small seconds | date | Chronograph, column wheel | chronometer
Year2011
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 Transocean AB015212/BF26/435X/A20BA.1

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Transocean AB015212/BF26/435X/A20BA.1, seen from the bench

The Transocean is equipped with the Breitling B01 automatic caliber, an in-house movement with column-wheel chronograph function and chronometer certification. The model features hours, minutes, small seconds, date and chronograph in a complete technical configuration. The lugs measure 22mm in width for the strap.

Frequently asked questions

What is the lug width of the Breitling Transocean AB015212/BF26/435X/A20BA.1?

The lug width of the Breitling Transocean AB015212/BF26/435X/A20BA.1 is 22 mm, measured internally between the case lugs at their base. This is the precise measurement required when selecting any compatible aftermarket strap.

What is the best strap for the Breitling Transocean AB015212/BF26/435X/A20BA.1?

For formal occasions, a Louisiana alligator strap with fine grain is the recommended choice, pairing elegantly with the silver dial. For everyday wear, a vegetable-tanned Tuscan calf leather strap in cognac or tobacco develops a natural patina over time. For a more casual or travel-oriented look, a robust nylon NATO strap provides a lightweight and practical alternative.

How do you change the strap on the Breitling Transocean AB015212/BF26/435X/A20BA.1?

The strap is replaced by releasing the spring bars housed within the case lugs. Using a flat-tipped or forked spring bar tool, compress the spring bar ends to release the strap. The operation takes only a few minutes and does not require a watchmaker's intervention on standard lug configurations. It is advisable to work on a soft surface to prevent scratches to the case.

Are there aftermarket straps compatible with the Breitling Transocean AB015212/BF26/435X/A20BA.1?

Yes. Any strap with a 22 mm lug width is technically compatible. Milano Straps manufactures handcrafted straps in leather, alligator, and technical materials specifically tailored to this model, with finished edges and spring bars included. Compatibility is guaranteed by the standard 22 mm lug width.

How long does a leather strap last on the Breitling Transocean AB015212/BF26/435X/A20BA.1?

Longevity depends on the material and conditions of use. A quality vegetable-tanned calf leather strap, with daily wear and proper maintenance (conditioning cream every 2–3 months, rotation with other straps), typically lasts 2–4 years. An alligator strap with fine tanning can last well beyond 5 years. Prolonged exposure to perspiration and humidity is the primary cause of deterioration; rotating between multiple straps significantly extends their lifespan.

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