Breitling · Superocean

Strap for Superocean 42

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter42 mm
ReferenceA1736402BA32225XA18BA1
FamilySuperocean
MovementBreitling caliber 17 hours, minutes, seconds | date
Year2010
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 Superocean A1736402BA32225XA18BA1

Selected for the 20 mm lug width

All 20 mm straps →

The Superocean A1736402BA32225XA18BA1, seen from the bench

The Breitling Superocean 42 A1736402BA32225XA18BA1 is a professional diving watch with roots dating to 1957. The 42mm stainless steel case houses a Caliber 17 automatic movement, certified chronometer COSC and derived from ETA 2824-2. It features a 20mm lug width, displaying hours, minutes, center seconds and date at 3 o'clock. Built as a functional tool watch with unidirectional bezel and luminescent indices, it offers water resistance suitable for recreational and professional diving in marine environments.

Frequently asked questions

What is the lug width of the Breitling Superocean A1736402BA32225XA18BA1?

The lug width of the Breitling Superocean A1736402BA32225XA18BA1 is 20mm. This measurement is taken internally between the two lugs at the point where the strap sits. A digital calliper or a millimetre ruler provides the most accurate reading. Any standard 20mm strap is fully compatible with this reference.

What is the best strap for the Breitling Superocean A1736402BA32225XA18BA1?

The ideal strap for the Breitling Superocean A1736402BA32225XA18BA1 depends on the intended use. For formal or business-casual settings, a vegetable-tanned alligator or box-calf leather strap in 20mm is the most refined choice. For sport or marine use, a ballistic nylon NATO or a vulcanised rubber strap offers the necessary resistance and comfort. A steel deployante clasp matched to the case finish completes the pairing both technically and aesthetically.

How do I change the strap on the Breitling Superocean A1736402BA32225XA18BA1?

To change the strap on the Breitling Superocean A1736402BA32225XA18BA1, use a fine-tipped or fork-style spring bar tool. Insert the tool into the hole or slot on the lug, compress the spring bar, and slide it free. Work on a soft mat to prevent scratches to the case. It is advisable to carry out this operation at a watchmaker or a specialist atelier to preserve the case integrity.

Are there aftermarket straps compatible with the Breitling Superocean A1736402BA32225XA18BA1?

Yes. The Breitling Superocean A1736402BA32225XA18BA1 uses standard 20mm lugs, ensuring broad compatibility with quality aftermarket straps. Milano Straps offers handcrafted options in alligator, calf leather, shell cordovan, nylon NATO and rubber, all produced with a 20mm attachment width and a buckle width ranging from 16mm to 18mm depending on the client's preference.

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

The lifespan of a leather strap on a Breitling Superocean depends on the quality of the hide, frequency of wear and exposure to perspiration and moisture. A high-quality alligator or calf leather strap worn daily and kept away from water typically lasts between 2 and 4 years before structural wear becomes apparent. Casati Milano straps are covered by an 18-month guarantee against manufacturing defects.

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