Strap for Superocean II 42 Stainless Steel / Blue / Mariner Blue / Bracelet

The Breitling Superocean A17365D11C1A1 has a lug width of 20mm. This measurement should be taken internally between the two lugs using a calliper, not across the exterior of the case. A 20mm strap with curved ends provides the best fit given the slight curvature of this model's lug geometry.

The ideal choice depends on intended use. For formal or business settings, a vegetable-tanned alligator strap with a matte finish pairs naturally with the satin-finished steel case. For everyday sport use, a smooth matte calfskin strap offers versatility. For genuine marine use, a ballistic nylon NATO or vulcanised rubber strap provides the necessary resistance to moisture and salt exposure.

Use a fine-tipped spring bar tool inserted into the notch on the side of each lug to release the spring bars. The Superocean uses standard 20mm spring bars. Work on a soft cloth or watch cushion to avoid scratching the bezel or caseback. If in doubt, any watchmaker or specialist atelier can perform the swap in minutes.

Yes. Any strap with a 20mm attachment width is technically compatible. However, given the lug geometry of the Superocean, straps with slightly curved ends or made from sufficiently supple material are preferable to ensure a clean fit without stress on the leather in the first few millimetres. Milanostraps.it offers a curated selection of 20mm straps verified for compatibility with this reference.

Longevity depends on material and usage. A quality alligator strap, with proper care and rotation with other straps, will typically last 3 to 5 years. Calfskin tends to wear more quickly if regularly exposed to perspiration or humidity. For genuine marine use with salt water exposure, leather will degrade faster; in those conditions, alternating with a NATO or rubber strap is strongly advisable.