Breitling · Transocean

Strap for Transocean Stainless Steel / Silver / Calf / 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
ReferenceA1036012/G721/433X/A20BA.1
FamilyTransocean
MovementBreitling caliber 10 hours, minutes, seconds | date | chronometer
Year2011 - 2012
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 A1036012/G721/433X/A20BA.1

Selected for the 22 mm lug width · workshop selection

All 22 mm straps →

The Transocean A1036012/G721/433X/A20BA.1, seen from the bench

The Breitling Transocean features the automatic Caliber 10 with chronometer certification and indication of hours, minutes, seconds and date. The case has 22mm lugs and offers essential watchmaking functions with chronometric precision. The model is distinguished by the Breitling manufacture movement with optimized power reserve.

Frequently asked questions

What is the lug width of the Breitling Transocean A1036012/G721/433X/A20BA.1?

The lug width of the Breitling Transocean A1036012/G721/433X/A20BA.1 is 22mm. This measurement refers to the internal distance between the two case lugs and is dictated by the 43mm case diameter. To verify this on your own piece, use a digital calliper placed directly in contact with the inner faces of the lugs.

What is the best strap for the Breitling Transocean A1036012/G721/433X/A20BA.1?

The Transocean A1036012/G721/433X/A20BA.1 pairs exceptionally well with vegetable-tanned calfskin straps from Tuscany, which complement its elegant-instrumental character. For formal occasions, alligator belly leather with a symmetrical grain pattern is the most refined choice. A brushed steel deployant clasp fitted to a leather strap enhances wrist comfort without compromising the overall aesthetic.

How do you change the strap on a Breitling Transocean A1036012/G721/433X/A20BA.1?

Strap replacement requires a spring bar tool with a forked tip. Insert the tip into the small notch on the spring bar, compress the spring to retract the pin from the lug hole, and slide the strap free. Work on a soft surface to avoid scratching the stainless steel case. If you are unfamiliar with the procedure, it is advisable to entrust the operation to a watchmaker or the Casati Milano atelier.

Are there aftermarket straps compatible with the Breitling Transocean A1036012/G721/433X/A20BA.1?

Yes: any strap with a 22mm attachment width is technically compatible with the Transocean A1036012/G721/433X/A20BA.1. Milano Straps offers a curated selection of handcrafted 22mm straps in Italian calfskin, CITES-certified alligator and nylon, all supplied with spring bars and available in various lengths to accommodate different wrist sizes.

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

The lifespan of a leather strap depends on leather quality, frequency of use and maintenance routine. A high-quality vegetable-tanned calfskin strap, rotated with other straps and treated periodically with a neutral leather conditioner, will retain its structural integrity and aesthetic quality for 3 to 5 years. Alligator straps, owing to the natural density of the leather fibres, tend to last longer when stored away from direct moisture and heat.

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