Breitling · Superocean

Strap for SuperOcean Automatic 46 Stainless Steel / Yellow / UK / Bracelet

Takes 24 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width24 mm
Case diameter46 mm
ReferenceA173781A1I1A1
FamilySuperocean
MovementBreitling caliber Caliber 17 ND Hours, Minutes, Seconds
CaseCeramic, Stainless 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 Superocean A173781A1I1A1

Selected for the 24 mm lug width · workshop selection

All 24 mm straps →

The Superocean A173781A1I1A1, seen from the bench

The Breitling Superocean A173781A1I1A1 is a 46mm stainless steel diving watch representing the evolution of an icon introduced in 1957. Certified to 1000 meters depth, it combines stainless steel with corrosion-resistant ceramic bezel. The watch is powered by the Breitling Caliber 17 ND automatic movement with hours, minutes and seconds functions, certified as a chronometer. The lug width is 24mm, proportional to the 46mm case diameter.

Frequently asked questions

What is the lug width of the Breitling Superocean A173781A1I1A1?

The lug width of the Breitling Superocean A173781A1I1A1 is 24mm. This dimension is proportional to the 46mm case diameter and ensures visual balance. When purchasing an aftermarket strap, ensure it is specifically sized for 24mm lugs.

Which strap pairs best with the Breitling Superocean A173781A1I1A1?

For the 46mm Superocean, we recommend structured leather with vegetable tanning (Tuscan calf, alligator) or sports rubber. Leather provides elegant contrast to the case's robustness, while rubber amplifies the watch's technical character. The A173781A1I1A1 particularly benefits from straps in brown or navy blue tones, which dialogue with the ceramic bezels.

How do you change the strap on a Breitling Superocean?

The Superocean uses a standard bayonet lug system. A spring bar remover tool is required to remove the elastic pin securing the original strap to the case lugs. Position the tool in the small lateral slot of the lug, push toward centre to release the spring, and the strap detaches. The reverse procedure secures the new strap. We recommend performing this task with the watch resting on a soft surface.

Is a 24mm aftermarket strap compatible with the Breitling Superocean A173781A1I1A1?

Yes, any strap with 24mm lug width is compatible with the Superocean A173781A1I1A1, regardless of brand. Always verify that the strap thickness does not exceed the lug's closing capacity. Our Milano Straps straps are tested for this compatibility and available in dozens of material and colour variants.

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

A quality leather strap, with vegetable tanning, offers durability of 3-5 years with daily wear, extendable with routine maintenance (periodic cleaning, drying after fresh water contact). Marine environments accelerate leather ageing: if you wear the Superocean frequently in diving conditions, favour rubber or neoprene straps. Tuscan leather develops natural patina over time, a result appreciated by those who value the accessory's aesthetic evolution.

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