Strap for Superocean Heritage '57 Stainless Steel / Blue Rainbow / Mesh

The Breitling Superocean Heritage '57 A103702A1C1A1 has a lug width of 20mm. This measurement refers to the internal distance between the two lugs and can be verified with a digital calliper placed at the narrowest point. Any standard 20mm strap fits without adapters.

The ideal choice depends on context. For formal settings, a polished alligator strap in midnight blue or dark brown complements the vintage case architecture. For daily wear, a vegetable-tanned calf strap develops a natural patina consistent with the Heritage aesthetic. For marine or intensive sports use, vulcanised rubber or woven nylon NATO straps are the most technically appropriate options.

Strap replacement requires a flat-head spring bar tool or a dedicated lug tool. Compress the spring bar securing the strap to the lug, remove the old strap, and insert the new one, ensuring the spring bar clicks into position on both sides. The operation takes approximately two minutes per lug and does not require case disassembly.

Yes. Any standard 20mm strap is compatible with this reference. Milanostraps.it offers a curated selection of handcrafted straps in leather, alligator, calf, rubber and NATO, all produced by Casati Milano with a 20mm attachment and choice of buckle or deployant clasp. No specific adapters are required.

Longevity depends on material and conditions of use. A vegetable-tanned calf strap, with routine care — avoiding prolonged contact with water and perspiration, applying conditioning cream every two to three months — has an average lifespan of two to four years. Quality alligator, owing to its denser grain structure, can exceed five years. Using a deployant clasp reduces mechanical stress on the strap, significantly extending its service life.