Breitling · Transocean

Strap for Transocean Day & Date Red Gold / Silver / Calf / 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/G752/112X/R20D.1
FamilyTransocean
MovementBreitling caliber Caliber 45 Hours, Minutes, Seconds | Date, Day | Chronometer
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/G752/112X/R20D.1

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Transocean R4531012/G752/112X/R20D.1, seen from the bench

The Breitling Transocean mounts the automatic caliber 45 with chronometer certification and indications of hours, minutes, seconds, date and day. The watch features 22mm lugs and certified chronometric functions. The movement offers the essential complications for a precision instrument oriented to aviation.

Frequently asked questions

What is the lug width of the Breitling Transocean R4531012/G752/112X/R20D.1?

The lug width of the Breitling Transocean R4531012/G752/112X/R20D.1 is 22mm. This measurement is taken between the inner edges of the two lugs using a millimetre calliper at the narrowest point. Any strap with a 22mm attachment will be technically compatible with this reference.

What is the best strap for the Breitling Transocean in Red Gold 43mm?

For a Transocean in Red Gold, a vegetable-tanned alligator strap in dark tobacco or bordeaux provides the most considered aesthetic balance: the scale texture complements the red gold case without overpowering it. Tuscan calfskin and shell cordovan are refined alternatives for a less formal register. A red gold deployant clasp completes the pairing with visual coherence.

How do I change the strap on the Breitling Transocean R4531012/G752/112X/R20D.1?

Strap replacement requires a spring bar tool with a forked or pointed tip: insert the tool into the lug hole where the spring bar sits, compress the bar laterally and slide the strap free. Repeat on the opposite side. With a Red Gold case, exercise extreme care to avoid scratches — a rubber-tipped tool or a protective cloth placed over the lugs is strongly recommended. Alternatively, a watchmaker or the Casati Milano atelier can perform the swap without risk.

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

Yes: any strap with a standard 22mm attachment and spring bars is compatible with the Breitling Transocean R4531012/G752/112X/R20D.1. The aftermarket offers options in leather, alligator, NATO webbing and rubber. Milano Straps offers a curated selection of handcrafted 22mm straps made in Italy, with lengths and tapers optimised for cases of this diameter.

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

The lifespan of a leather strap depends on the hide, the tanning method and daily use. A quality alligator or vegetable-tanned calfskin strap, properly conditioned and kept away from prolonged water exposure, will retain its structural and aesthetic integrity for 3 to 5 years of daily wear. Shell cordovan, owing to the density of its fibres, can exceed this timeframe whilst developing a distinctive patina over time.

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