Strap for Superocean 42 Stainless Steel / Black - Yellow / eComm

The lug width of the Breitling Superocean A17366D71B1S1 is 20mm. This measurement should be taken with a digital calliper placed internally between the two lugs, on the horizontal plane of the case. Respecting this measurement is essential to ensure correct spring bar engagement and optimal wrist fit.

The choice depends on intended use. For formal settings, a bombé alligator or vegetable-tanned calf strap complements the 42mm case without undermining its sporting character. For marine use, a ballistic nylon NATO or vulcanised rubber strap with diamond-pattern texture offers water resistance and comfort. A brushed steel deployant clasp enhances any leather option.

Strap replacement requires a fine-tipped spring bar tool. Insert the tool into the lateral slot between the lug and the strap end, compress the spring bar, and slide the strap free. The Superocean features straight, slightly angled lugs: work on a soft watchmaker's mat to avoid scratching the case. The 20mm spring bar should be pre-loaded into the new strap before fitting.

Yes. Any strap with a 20mm lug width and flat ends is mechanically compatible. Milanostraps.it offers a curated selection of handcrafted 20mm straps in leather, rubber, and NATO materials, specifically suited to the straight lug architecture of the Superocean. Casati Milano bespoke straps are hand-stitched from selected materials, ensuring both mechanical compatibility and aesthetic coherence with the steel case.

Longevity depends on leather type, frequency of use, and exposure to perspiration and moisture. A well-maintained vegetable-tanned calf strap typically lasts 2–3 years with daily wear. A quality alligator strap can exceed 4–5 years. Given the Superocean's marine vocation, it is advisable to alternate the leather strap with a rubber or NATO option during water-related activities to protect the leather from direct immersion.