Breitling · Transocean

Strap for Transocean Day & Date Red Gold / Silver / Croco / 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
ReferenceR4531012/G752/731P/R20BA.1
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/G752/731P/R20BA.1

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Transocean R4531012/G752/731P/R20BA.1, seen from the bench

The Breitling Transocean Day & Date R4531012/G752/731P/R20BA.1 is a 43mm red gold watch powered by the COSC-certified Breitling Caliber 45 movement, featuring hours, minutes, seconds, day, and date functions. Inspired by transcontinental aviation aesthetics of the 1950s, it combines tool watch functionality with haute horlogerie refinement. The 22mm lug width accommodates a wide range of aftermarket strap options, allowing versatile styling from formal to casual applications.

Frequently asked questions

What is the lug width of the Breitling Transocean R4531012/G752/731P/R20BA.1?

The lug width of the Breitling Transocean R4531012/G752/731P/R20BA.1 is 22mm. This measurement is taken with a digital calliper positioned internally between the two lugs of the case, at the strap attachment point, where the clear distance must read exactly 22mm.

What is the best strap for the Breitling Transocean in red gold, 43mm?

For the Breitling Transocean in red gold, a vegetable-tanned alligator strap in cognac or dark brown tones is the most coherent pairing: the natural scale grain complements the case finishing and the patina deepens beautifully over time. Shell cordovan is equally refined for those seeking a waxy surface and exceptional longevity.

How do you change the strap on the Breitling Transocean R4531012/G752/731P/R20BA.1?

To replace the strap on the Breitling Transocean, a spring bar tool is required. Insert the forked end into the lateral slots of the existing spring bars, compress the spring bar, slide the strap free from the lug and fit the new one. Given the red gold case, it is strongly advisable to entrust this operation to a watchmaker or specialist atelier to avoid any risk of scratching.

Are there aftermarket straps compatible with the Breitling Transocean 22mm?

Yes, there is a wide range of aftermarket straps compatible with the 22mm lug width of the Breitling Transocean. Milano Straps offers handcrafted options in alligator, calfskin, shell cordovan and rubber, all supplied with spring bars. It is essential to verify that the strap-end curvature matches the Breitling case profile for a clean, seamless fit.

How long does a leather strap last on a Breitling Transocean worn daily?

A quality leather strap — alligator or vegetable-tanned calfskin — worn daily on a Breitling Transocean typically lasts between 18 and 36 months, depending on exposure to perspiration, humidity and UV light. Regular conditioning with a suitable leather cream and rotation between multiple straps will significantly extend the service life of the piece.

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