Strap for Superocean Heritage B31 Automatic 40 Stainless Steel / Green / Rubber

The Breitling Superocean Heritage AB3110361L1S1 features a standard lug width of 20mm. This measurement should be taken with a millimetre calliper between the two horizontal lugs, with the case lying flat on a surface. Any strap with a 20mm attachment will be fully compatible with this reference.

The ideal choice depends on the intended use. For formal or smart-casual wear, a vegetable-tanned alligator strap with a matte finish, fitted with a steel or deployant clasp, complements the character of the watch. For sporting or marine use, a vulcanised rubber or technical nylon NATO strap honours the original diving heritage of the model. The correct strap width to order is 20mm at the lug.

The strap is removed using a springbar tool. The 20mm springbars are housed within the two case lugs. Compress the springbar on one side, slide out the strap, and repeat on the other side. It is advisable to work on a soft surface to protect the ceramic bezel from accidental scratches. The entire process takes approximately 2 to 3 minutes, even for those with no prior experience.

Yes. Any strap with a 20mm lug attachment is technically compatible with the Breitling Superocean Heritage AB3110361L1S1. High-quality artisan aftermarket straps, such as those produced by Casati Milano, are crafted to the same standard OEM dimensions and ensure a precise fit without any case modification. It is worth checking the curvature of the strap ends to match the lug profile.

The lifespan of a leather strap depends on the material, tanning method and frequency of use. A vegetable-tanned alligator strap, properly maintained with leather conditioner and kept away from regular water exposure, can last between 3 and 7 years while retaining an excellent appearance. Calf leather typically lasts 2 to 4 years. Regular exposure to perspiration, salt water or solvents significantly reduces strap life. For marine environments, alternating with a rubber or NATO strap is strongly recommended.