Breitling · Transocean

Strap for Transocean Day & Date Red Gold / Black / Rubber / Folding

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
ReferenceR4531012/BB70/279S/R20D.3
FamilyTransocean
MovementBreitling caliber 45 hours, minutes, seconds | date, day | chronometer
Year2012
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 R4531012/BB70/279S/R20D.3

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Transocean R4531012/BB70/279S/R20D.3, seen from the bench

The Breitling Transocean Day & Date Red Gold ref. R4531012/BB70/279S/R20D.3 is powered by the Breitling Caliber 45 manufacture movement, a COSC-certified chronometer. The 18-carat red gold case measures 43mm in diameter with applied indices on silver dial. It features hours, minutes, seconds, date and day indications. The 22mm lug width is intermediate between classic dress watches and sport models, accommodating substantial strap presence without excessive visual weight. The screw-down caseback ensures water resistance and protects the movement.

Frequently asked questions

What is the lug width of the Breitling Transocean R4531012/BB70/279S/R20D.3?

The lug width of the Breitling Transocean R4531012/BB70/279S/R20D.3 is 22mm. This measurement should be taken with a calliper at the point where the lugs meet the case, not at their widest profile. Standard 22mm straps are fully compatible without any adapters.

What is the best strap for the Breitling Transocean R4531012/BB70/279S/R20D.3 in red gold?

For an 18k red gold case such as this Transocean, the most coherent options are: Louisiana alligator in cognac or tobacco for a classic dressy register, vegetable-tanned calf leather in honey or havana for a contemporary aviator aesthetic, and shell cordovan in burgundy for formal occasions. Buckle and deployant clasp should match in red gold to maintain metallic consistency.

How do you change the strap on a Breitling Transocean R4531012/BB70/279S/R20D.3?

Strap replacement requires a spring bar tool with a forked tip. The Transocean lugs accommodate standard 22mm spring bars. Insert the tool tip into the lug hole, compress the spring bar and slide the strap free. The operation takes seconds and poses no risk to the red gold case, provided you use a tool with nylon or silicone-tipped prongs to avoid surface scratching.

Are there aftermarket straps compatible with the Breitling Transocean R4531012/BB70/279S/R20D.3?

Yes. Any strap with a 22mm lug width and standard spring bars is compatible. Milano Straps offers handcrafted Italian leather straps specifically selected for this size, with stitching, thickness and finish suited to the dressy character of the Transocean. Branded Breitling straps are not required; Italian artisan quality frequently exceeds that of the original equipment strap.

How long does a leather strap last on a Breitling Transocean R4531012/BB70/279S/R20D.3?

Longevity depends on leather type and daily use. A vegetable-tanned calf leather strap, conditioned with neutral cream every three to four months, typically lasts three to five years whilst developing a distinctive personal patina. Alligator leather, more resistant to surface moisture, lasts five to eight years with standard care. Shell cordovan, owing to its dense fibre structure, is the most durable option, often exceeding ten years of regular use.

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