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

The Breitling Superocean Heritage A10390361L1A1 has a lug width of 20mm. This measurement should always be confirmed using a digital calliper between the lugs at the point of strap attachment, ensuring a precise fit without unwanted play.

The ideal choice depends on the intended use. For formal occasions, a matte alligator strap with contrast stitching complements the deep blue dial beautifully. For everyday or active use, a vegetable-tanned calfskin strap develops a distinctive patina over time, while vulcanised rubber is the most suitable option for marine or humid environments. A ballistic nylon NATO strap offers the most practical and reversible solution.

The strap is removed using a flat-tip or fork-style spring bar tool to release the spring bar securing the strap to the case lugs. Care should be taken to avoid scratching the ceramic bezel or the steel lugs. Place the watch face-down on a soft cloth and work on a stable surface. The correct spring bar width for this model is 20mm.

Yes. Any strap with a 20mm lug width is technically compatible with the Breitling Superocean Heritage 36. The selection available in this size is extensive, ranging from handcrafted leather straps to NATO, rubber, and steel bracelet options. It is advisable to verify the total strap length (standard: 115/75mm) and the preferred closure type — buckle or deployant clasp.

The longevity of a leather strap depends on the quality of the tanning process and the conditions of use. A high-quality vegetable-tanned calfskin strap, finished by hand, can last between two and five years with regular maintenance — conditioning cream every three to four months and avoiding prolonged exposure to water and perspiration. Shell cordovan, owing to its dense fibre structure, tends to outlast standard calfskin. For frequent marine use, rubber or NATO straps are recommended.