Strap for Superocean Heritage B31 Automatic 42 Stainless Steel / Green / Rubber

The lug width of the Breitling Superocean Heritage AB3111361L1S1 is 22mm. This measurement is taken internally between the two case lugs at the point where the strap attaches. It is the primary specification for identifying any compatible strap, whether leather, NATO, rubber, or steel bracelet.

The ideal strap depends on intended use. For a sport-elegant register, vegetable-tanned calf leather or a matte-finish alligator strap offers the most balanced pairing. For marine or dive use, an FKM rubber or water-resistant nylon NATO strap provides the required technical performance. The correct measurement is 22mm at the case, tapering to 20mm at the buckle.

Strap replacement requires a fine flat-end spring bar tool — preferably in plastic or brass to avoid scratching the lugs — to release the 1.8mm diameter spring bars. Work on a soft surface with the case face-down for direct access to the lugs. Replacement spring bars must be stainless steel and cut to the correct length for 22mm lugs.

Yes. Any strap with a 22mm attachment width and compatible spring bars is technically mountable on the AB3111361L1S1. Milanostraps.it offers a curated selection of handcrafted leather, rubber and textile straps produced with premium materials in various finishes. The standard 22/20mm taper is the most common and ensures correct proportions with the 42mm case.

The lifespan of a leather strap depends on hide quality, care routine and exposure to perspiration and moisture. A quality vegetable-tanned calf strap, worn daily and conditioned regularly with leather cream, typically lasts 18 to 36 months. Alligator leather tends to last longer due to the structural density of its scales. Shell cordovan frequently exceeds three years while retaining its characteristic compactness. Avoiding direct water contact significantly extends strap life.