Strap for Superocean Heritage II B20 Automatic 44 Stainless Steel / UK

The lug width of the Breitling Superocean Heritage AB20304A1C1S1 is 22mm, measured between the inner faces of the lugs at the point of strap attachment. This is a standard dimension for large-diameter dive watches and ensures broad compatibility with aftermarket straps.

The ideal strap depends on intended use. For a vintage-coherent aesthetic, a vegetable-tanned calfskin strap in tobacco brown or a smooth alligator in navy blue works particularly well. For aquatic use, a vulcanised rubber strap or a ballistic nylon NATO offers full waterproofing and comfort. All options must feature a 22mm attachment width.

Strap replacement requires a fine-tipped springbar tool. Insert the tool into the lateral slot of the lug, compress the springbar and slide the strap free. The procedure does not require opening the case and poses no risk to water resistance, provided the caseback and crown are not disturbed.

Yes. Any strap with a 22mm attachment and a straight or slightly tapered end profile is compatible with the Superocean Heritage AB20304A1C1S1. MilanoStraps offers a range of handcrafted leather, rubber and textile straps designed specifically for dive watches of this diameter, with thickness calibrated to the case profile.

Longevity depends primarily on exposure to water and perspiration. A quality vegetable-tanned leather strap, kept away from salt water and regularly conditioned with a suitable leather cream, typically lasts 2–4 years with daily wear. For intensive or marine use, it is advisable to alternate with a rubber or NATO strap, reserving the leather for dry-wear occasions.