Breitling · Transocean

Strap for Transocean Day & Date Stainless Steel / Silver / Military / 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
ReferenceA4531012/G751/106W/A20BA.1
FamilyTransocean
MovementBreitling caliber 45 hours, minutes, seconds | date, day | chronometer
Year2012
CaseStainless Steel

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 A4531012/G751/106W/A20BA.1

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Transocean A4531012/G751/106W/A20BA.1, seen from the bench

The Breitling Transocean A4531012/G751/106W/A20BA.1 is a stainless steel watch honoring the golden age of transatlantic aviation. It features a 43 mm steel case with clean lines, a Breitling Caliber 45 COSC-certified chronometer movement, and a refined dial with day and date display. The 22 mm lug width accommodates standard straps, typically 20 mm at the lug, tapering toward the wrist.

Frequently asked questions

What is the lug width of the Breitling Transocean A4531012/G751/106W/A20BA.1?

The lug width of the Breitling Transocean A4531012/G751/106W/A20BA.1 is 22 mm. This measurement is taken between the two lugs of the case using a digital calliper positioned perpendicularly, and it is the key parameter for selecting a compatible strap without lateral play or forced fitting.

What is the best strap for the Breitling Transocean A4531012/G751/106W/A20BA.1?

Given the elegant, slightly vintage character of the Transocean, vegetable-tanned calf leather or bombed alligator straps are the most coherent choice aesthetically. Colours such as cognac, tobacco brown or midnight blue complement the clean lines of the dial. For more active use, shell cordovan is a strong alternative owing to its density and natural lustre.

How do you change the strap on the Breitling Transocean A4531012/G751/106W/A20BA.1?

Strap replacement requires a spring bar tool to compress and release the spring bars securing the strap to the lugs. Insert the forked tip into the lug slot, compress the spring bar, and slide the strap free. The process is fully reversible and leaves no marks on the case when carried out with the correct tools. Spring bars of 22 mm with a shoulder diameter of 1.8 mm are recommended for this model.

Are there aftermarket straps compatible with the Breitling Transocean A4531012/G751/106W/A20BA.1?

Yes. Any strap with a 22 mm attachment width is technically compatible with the Breitling Transocean A4531012/G751/106W/A20BA.1, provided the length is appropriate (typically 120/75 mm for average wrists) and the taper at the buckle end is 20 mm. Milano Straps offers a curated selection of handcrafted leather, shell cordovan and nylon straps specifically sized for this format.

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

The lifespan of a leather strap depends on the material, care and frequency of wear. A quality vegetable-tanned calf strap, kept away from prolonged moisture and conditioned periodically with neutral wax, typically lasts between two and four years. Shell cordovan, owing to the density of its fibres, can exceed five years while retaining its shape. Alligator, properly maintained, offers comparable longevity with an aesthetic that improves with age.

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