Strap for Superocean II 36 Black / Rubber

The Breitling Superocean 36 reference A17312C9.BD91.231S features a lug width of 18mm. This measurement should be taken with a digital calliper positioned between the inner lug surfaces of the case, not on the mounted strap. Adhering to this specification is essential for correct strap fitment and to avoid damaging the lugs.

For the Superocean 36 with an 18mm lug width, the ideal choice depends on context. A vegetable-tanned alligator strap offers the most refined contrast for formal or mixed occasions. Smooth calf leather is the most versatile everyday option. For sport or water use, a vulcanised rubber strap or a ballistic nylon NATO at 18mm are functionally appropriate and consistent with the model's tool watch heritage.

The strap on the Superocean 36 is secured by spring bars connecting it to the case lugs. A forked spring bar tool or a thin flat-blade screwdriver is sufficient to compress the spring bars and release the strap. It is advisable to work on a soft surface to avoid scratching the case. For precious straps or any work on the watch itself, it is preferable to consult a watchmaker or the Casati Milano atelier.

Yes, any strap with an 18mm lug width is technically compatible with the Breitling Superocean A17312C9.BD91.231S. On milanostraps.it you will find a curated selection of handcrafted 18mm straps in leather, rubber, and textile, produced by Casati Milano using selected materials with an 18-month guarantee against manufacturing defects. Build quality is comparable to or superior to standard factory straps.

The lifespan of a leather strap depends on the material, care, and intensity of use. A quality vegetable-tanned alligator strap, kept away from water and conditioned with leather cream every 3–4 months, can last 5–8 years, developing a distinctive patina. Smooth calf leather has an average lifespan of 2–4 years with daily wear. Shell cordovan, owing to its dense fibrous structure, is among the most durable options. For a dive watch such as the Superocean, leather should be reserved for dry environments, with rubber or NATO straps recommended for aquatic use.