Strap for Superocean Heritage II 46 Stainless Steel / Bronze / Bronze / Calf / Pin

The lug width of the Breitling Superocean Heritage AB202033/Q618/439X/A20BA.1 is 24 millimetres. This measurement is the standard for large-diameter cases (46mm) and ensures visual balance between case mass and strap width. Always verify the measurement by positioning a calliper between the two lateral case lugs, measuring from inner edge to inner edge.

The ideal strap depends on intended use and season. For sophisticated elegance, we recommend alligator crocodile in black or dark brown, which creates striking contrast with the steel case. For durability and conscious ageing, vegetable-tanned calf leather in cognac or burgundy tones develops a beautiful patina over time. For water activities, vulcanised rubber or nylon NATO straps maintain aquatic functionality without compromise.

Changing the strap requires specific tools: a spring bar tool and a small lever. Position the watch with the strap facing upward, locate the lateral holes of the bayonet spring at the case attachments, insert the lever into the hole and gently push towards the centre to release the spring. Once freed, the old strap detaches easily. Repeat on the opposite side. To fit the new strap, align the lug ends with the case pins and push until you feel a locking click.

All artisanal straps with 24-millimetre lug width are compatible with this model. Milano Straps offers a complete selection of 24mm straps in premium leathers (alligator, calf, shell cordovan), rubber and NATO fabrics, all customisable in dimensions, initials and stitching thread choice. Compatibility is guaranteed by this standardised attachment width.

Longevity depends on material and usage patterns. A vegetable-tanned calf strap, worn moderately (3–4 days weekly) and properly maintained, lasts 3–5 years before requiring replacement. Alligator, thanks to denser fibres, reaches 4–6 years. Vulcanised rubber remains functional for 2–3 years before losing elasticity. To extend lifespan, avoid prolonged saltwater exposure, remove the strap after intensive wear days and treat it periodically with specific protective creams.