Breitling · Transocean

Strap for Transocean Day & Date Red Gold / Silver / Racer

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/G752/220R
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/G752/220R

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Transocean R4531012/G752/220R, seen from the bench

The Breitling Transocean Day & Date Red Gold model R4531012/G752/220R features a 43mm red gold 18kt case paired with a 22mm lug width. It houses the Breitling Caliber 45, an automatic movement certified chronometer by COSC, ensuring precision of -4/+6 seconds per day. The dial displays hours, minutes, seconds, and date with day indication. The red gold case develops a warm, luminous presence that reacts distinctively to light. The slightly curved lug geometry accommodates straps with straight or minimal curve termination.

Frequently asked questions

What is the lug width of the Breitling Transocean R4531012/G752/220R?

The Breitling Transocean R4531012/G752/220R features a lug width of 22mm. This measurement refers to the internal distance between the two lugs of the case — the width the strap must match at the point of attachment. To verify compatibility, use a millimetre calliper or a precision ruler placed directly between the lugs.

What is the best strap for the Breitling Transocean R4531012/G752/220R in red gold?

For an 18kt red gold case such as that of the Transocean R4531012/G752/220R, the most suitable materials are flat-scale alligator in cognac brown, burgundy or midnight blue, and vegetable-tanned calf leather. Shell cordovan represents a high-end alternative for those seeking a dense texture and natural lustre. A deployant clasp in red gold or gold PVD completes the pairing in a manner consistent with the prestige of the case.

How do you change the strap on a Breitling Transocean R4531012/G752/220R?

Strap replacement on the Transocean R4531012/G752/220R uses standard 22mm spring bars. A spring bar tool is required to compress the bar ends and release the strap from the lugs. Given the red gold case, it is advisable to work on a soft surface and proceed with care to avoid scratching. If in doubt, entrust the operation to a watchmaker or the Casati Milano atelier.

Are there aftermarket straps compatible with the Breitling Transocean R4531012/G752/220R?

Yes. Any strap with a 22mm attachment width and standard spring bars is compatible with the Breitling Transocean R4531012/G752/220R. milanostraps.it offers a curated selection of handcrafted 22mm straps in various materials and finishes, designed to complement this case both aesthetically and technically. For a fully bespoke solution, Casati Milano provides a made-to-measure service with in-atelier leather selection.

How long does a leather strap last on a Breitling Transocean R4531012/G752/220R?

The lifespan of a leather strap depends on material quality, frequency of use, and maintenance. A high-quality alligator or vegetable-tanned calf strap, rotated with other straps and kept away from prolonged contact with water and perspiration, can last between 3 and 6 years while retaining good structural integrity. Milano Straps straps carry an 18-month guarantee 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