Breitling · Superocean

Strap for SuperOcean Automatic 46 Stainless Steel / Blue / 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
ReferenceA17378E71C1A1
FamilySuperocean
MovementBreitling caliber 17 ND hours, minutes, seconds
Year2022
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 A17378E71C1A1

Selected for the 24 mm lug width · workshop selection

All 24 mm straps →

The Superocean A17378E71C1A1, seen from the bench

The Superocean is a Breitling dive watch equipped with Caliber 17, an automatic movement with hour, minute, and second indications. The A17378E71C1A1 reference features 24mm lugs. The model is part of the brand's water sports collection.

Frequently asked questions

What is the lug width of the Breitling Superocean A17378E71C1A1?

The lug width of the Breitling Superocean A17378E71C1A1 is 24mm. This measurement is critical for selecting a compatible strap and ensuring correct proportions on the 46mm case. You can verify it by measuring the internal distance between the two pins securing the strap using a digital calliper.

What is the best strap material for the Superocean A17378E71C1A1?

There is no absolute answer—it depends on intended use. For regular diving, natural rubber is technical and waterproof. For daily versatility, vegetable-tanned calf leather in natural brown offers evolving patina and understated elegance. Structured-grain alligator creates sophisticated contrast with the dial. Shell cordovan provides maximum density and longevity.

How do I change the strap on a Breitling Superocean A17378E71C1A1?

The process is straightforward: use a dedicated tool (spring bar tool or very thin flathead screwdriver) to push the pin inward from one side of the case. The pin will exit from the other side and the strap will detach. Insert the pin into the new strap aligned with the lugs and press until it clicks. A professional watchmaker can complete the operation in five minutes if preferred.

Can I use an aftermarket strap on a Breitling Superocean A17378E71C1A1?

Yes, provided the strap has a 24mm lug width and is constructed from material quality equivalent to the watch's value. Artisanal leather or natural rubber straps from Milano Straps are compatible and often improve comfort and aesthetics over factory straps. Always verify lug width before purchase.

How long does a leather strap last on a Superocean A17378E71C1A1?

Longevity depends on material, use and maintenance. Artisanal vegetable-tanned calf typically lasts 3–5 years in daily use, developing characteristic patina. Natural rubber lasts 5–7 years. Shell cordovan can exceed 10 years. Exposure to saltwater, perspiration and UV radiation shortens lifespan: rinse and dry the strap after diving and maintain the leather with periodic treatments.

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