Breitling
Superocean A17316D71O1A1— lug 18mm

The Breitling Superocean A17316D71O1A1 features 18mm lug width, measured internally between the two lugs at the point of strap contact. This is the specification required when ordering an aftermarket or bespoke strap.

The choice depends on context. For formal or smart-casual wear, an alligator or shell cordovan strap in black or dark brown with contrast stitching complements the satin-brushed steel case. For sport or water use, an 18mm vulcanised rubber strap is the most practical option. A ballistic nylon NATO strap remains coherent with the toolwatch character of the reference.

The Superocean 36 uses a standard spring bar system with 18mm spring bars. A flat-blade screwdriver or dedicated springbar tool is sufficient: compress the spring bar against the lug, slide out the strap and fit the replacement. The operation takes approximately two minutes and requires no specialist skills. Work on a soft surface to avoid scratching the case.

Yes. Any strap with an 18mm attachment width is technically compatible. milanostraps.it offers a curated selection of handcrafted straps in various materials — leather, alligator, rubber, NATO — filtered by 18mm lug width, made in Italy with selected materials and also available as bespoke commissions through Atelier Casati Milano.

Lifespan depends on material and frequency of use. A vegetable-tanned calfskin strap worn daily maintains structural integrity for 2–4 years, developing a characteristic patina over time. Shell cordovan, owing to the dense fibrous structure of the equine leather, typically lasts twice as long. Prolonged immersion in water with leather straps is not recommended; for aquatic use, rubber or NATO options are preferable.