Breitling · Transocean

Strap for Transocean Chronograph Red Gold / Black / Croco

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
ReferenceRB015212.BB16.737P
FamilyTransocean
MovementBreitling caliber B01 hours, minutes, small seconds | date | Chronograph, column wheel | chronometer
Year2011
CaseRed Gold

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 RB015212.BB16.737P

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Transocean RB015212.BB16.737P, seen from the bench

The Breitling Transocean RB015212.BB16.737P is a 43 mm red gold chronograph designed as the opposite of Breitling's aviation heritage. It features the in-house B01 manufacture movement, COSC-certified chronometer, with automatic winding, column wheel, anchor escapement, and approximately 70 hours power reserve. The dial displays hours, minutes, small seconds, and date with integrated chronograph counters. The 22 mm lug width is proportioned to the case and requires a corresponding strap for proper visual balance.

Frequently asked questions

What is the lug width of the Breitling Transocean RB015212.BB16.737P?

The Breitling Transocean RB015212.BB16.737P has a lug width of 22 mm. This is the measurement to use when selecting any replacement strap, whether in leather or other materials. It is advisable to verify the measurement with a digital calliper before purchase, taking into account both the nominal width and the depth of the spring bar holes.

What is the best strap for the Breitling Transocean RB015212.BB16.737P?

For a red gold chronograph such as the Transocean RB015212.BB16.737P, a polished belly alligator strap in dark brown, bordeaux or cognac is the most coherent choice given the dress watch character of the piece. Shell cordovan and vegetable-tanned calf leather are also excellent alternatives, developing a distinctive natural patina over time. A red gold deployant clasp completes the pairing whilst preserving the strap from excessive wear.

How do you change the strap on a Breitling Transocean RB015212.BB16.737P?

Strap replacement requires a fine-tipped spring bar tool to remove the spring bars from the 22 mm lugs. Care must be taken not to scratch the red gold case; protecting the lugs with washi tape or entrusting the operation to a watchmaker is strongly recommended. The original Breitling spring bars are generally reusable if they remain in good condition.

Are there aftermarket straps compatible with the Breitling Transocean RB015212.BB16.737P?

Yes, any standard 22 mm strap with spring bar attachment is technically compatible with the Breitling Transocean RB015212.BB16.737P. Milano Straps offers a curated selection of handcrafted leather, alligator and cordovan straps specifically suited to this lug width, with options for bespoke colour, stitching and clasp finishing in red gold.

How long does a leather strap last on a Breitling Transocean RB015212.BB16.737P?

The lifespan of a leather strap depends on the material, care and frequency of use. A quality alligator or shell cordovan strap worn daily and kept away from excessive moisture will maintain its structural and aesthetic integrity for 3 to 5 years. The use of a deployant clasp significantly reduces mechanical stress at the buckle point, extending the strap's service life. Milano Straps provides 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.

Request an appointment →

Casati Milano · Via XX Settembre 15, Milan · by appointment only