Strap for Superocean Heritage B31 Automatic 36 Stainless Steel / Green / Rubber

The lug width of the Breitling Superocean Heritage A10390361L1S1 is 20mm. This measurement is taken with a digital calliper across the inner distance between the two lugs at the strap attachment point, not across the outer case width.

For the Superocean Heritage 36 with its black ceramic bezel, the most suitable options are: polished black or navy alligator for formal wear, vegetable-tanned calf leather for a casual-elegant look with natural patina, and vulcanised rubber for sporting or marine use. The correct width is 20mm.

The strap on the Superocean Heritage A10390361L1S1 is removed using a springbar tool, inserting the tip into the lug hole and compressing the spring bar. The procedure does not require professional tools but should be carried out carefully to avoid scratching the stainless steel case. A protective mat is recommended.

Yes. Any strap with a 20mm lug width is technically compatible with the Superocean Heritage 36. Milanostraps.it offers a curated selection of handcrafted leather, rubber, and nylon straps specifically suited to this model, with the option of bespoke work through Casati Milano atelier.

The lifespan of a leather strap depends on the quality of the tanning process and frequency of use. A high-quality vegetable-tanned calf strap, with regular care, typically lasts 2–4 years. Cordovan and alligator, owing to their denser fibre structure, can exceed 5 years. Frequent exposure to sea water significantly shortens lifespan; in such cases, a rubber strap is strongly recommended.