Strap for Superocean II 46 Blacksteel / Black / Rubber / Pin

The Breitling Superocean M17368B71B1S1 (46mm case) has a lug width of 20mm. This measurement is taken internally between the two lugs using a calliper or a thin ruler. It is essential to respect this specification to ensure a precise and secure fit when replacing the strap.

For the Superocean M17368B71B1S1 with its 46mm case, the most suitable materials are: matt alligator in midnight blue or cognac brown for a dress-sport pairing; vegetable-tanned calf leather for those who appreciate a personalised patina over time; nylon NATO or vulcanised rubber for marine use. The strap should have a tail thickness of at least 4–5mm at the buckle end to visually balance the generous case diameter.

To replace the strap on the Superocean M17368B71B1S1, you will need a springbar tool with a forked tip. Insert the tool into the slot between the strap and the lug, compress the springbar and slide the strap outward. Repeat for both lugs. Work on a soft surface to avoid scratching the case. When fitting the new strap, compress the springbars and hook them into the lug holes on both sides.

Yes. The Breitling Superocean M17368B71B1S1 uses a standard 20mm lug width, compatible with a wide range of aftermarket straps. Milano Straps offers handcrafted Italian straps made to measure, available both online and through the Casati Milano atelier by appointment. For this model, straps with slightly curved ends are recommended to follow the lug profile.

The lifespan of a leather strap depends on the quality of the tanning process, usage and maintenance. A high-quality vegetable-tanned strap, kept away from water and treated periodically with leather conditioner, typically lasts 3–5 years with daily wear. Vegetable-tanned alligator leather, with its denser fibre structure, offers greater resistance to wear. For marine or intensive sporting use, NATO or rubber straps are preferable, reserving leather for dry environments.