Breitling · Superocean

Strap for Superocean II 42 Stainless Steel / Blue / Mariner Blue / Rubber / Pin

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
ReferenceA17365D1/C915/223X/A18BA.1
FamilySuperocean
MovementBreitling caliber Caliber 17 Hours, Minutes, Seconds | Date
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

The Superocean A17365D1/C915/223X/A18BA.1, seen from the bench

The Breitling Superocean features the caliber 17 with hour, minute, second and date indications. The watch has 20mm lugs and typical professional diving functionalities of the Superocean collection. The model maintains the essential technical characteristics for professional underwater use.

Frequently asked questions

What is the lug width of the Breitling Superocean A17365D1/C915/223X/A18BA.1?

The lug width of the Breitling Superocean A17365D1/C915/223X/A18BA.1 is 20mm. This measurement is taken between the two parallel lugs using a digital calliper placed flush against the inner shoulders of the case. All compatible straps must have a nominal width of 20mm at the top terminal.

What is the best strap for the Breitling Superocean A17365D1/C915/223X/A18BA.1?

The ideal choice depends on context. For formal occasions, a blue midnight or black gloss alligator strap with a stainless steel deployante clasp complements the watch's professional character. For daily wear, a vegetable-tanned calf leather strap or a blue-black NATO nylon strap offers excellent versatility. For aquatic use, a vulcanised rubber strap is the only technically appropriate option.

How do you change the strap on the Breitling Superocean A17365D1/C915/223X/A18BA.1?

Strap replacement requires a fine-tipped springbar tool. The Superocean 42 uses standard 20mm springbars. Insert the tip into the lug channel, compress the springbar inward, and slide the strap terminal free. Repeat on the opposite side. No specialist tools are required, but working on a soft surface is advisable to prevent scratching the bezel or case.

Are there aftermarket straps compatible with the Breitling Superocean A17365D1/C915/223X/A18BA.1?

Yes. The Breitling Superocean A17365D1/C915/223X/A18BA.1 features straight lugs with standard springbars, making it compatible with any aftermarket 20mm strap with flat-cut terminals. Milanostraps.it offers a handcrafted selection of leather, NATO and rubber straps specifically dimensioned for this lug profile.

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

The lifespan of a leather strap depends on material quality and care. A vegetable-tanned calfskin strap, with regular conditioning (nourishing cream every 3–4 months, dried away from direct heat), will maintain its structural integrity and appearance for 2–4 years of daily use. Shell cordovan, being denser and more compact, can exceed 5 years. Continuous exposure to seawater or perspiration significantly accelerates degradation; in such contexts a rubber strap is strongly recommended.

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