Strap for Superocean Heritage II 46 Chronograph Stainless Steel / Bronze / Bronze / Milanese

The Breitling Superocean Heritage A13312331Q1A1 mounted on a 46mm case features a lug width of 24mm. This measurement is the standard for the full-size model and allows you to fit aftermarket straps specifically engineered for this width. To verify, measure the internal distance between the two horizontal pins protruding from the case using a digital calliper.

Your choice depends on intended use and aesthetic preferences. For elegance, vegetable-tanned alligator offers natural patina and irregular grain that age beautifully. For refined luxury, shell cordovan resists cracking and develops deep colouration over time. For daily and sports wear, grained calf in navy or black maintains formality. For genuine diving, natural rubber or FKM inserts guarantee grip and rapid drying without moisture retention in the leather pores.

Strap replacement requires two essential steps. Position the watch face-down on a soft surface. Locate the horizontal pins (lugs) protruding from the case. Using a spring bar tool, gently push the pin from one side whilst supporting the watch with your other hand, thereby releasing the internal spring. Repeat for both sides. Remove the old strap, align the new strap's pins with the lugs, and reinsert the pins until you hear the characteristic click of engagement.

Yes, the A13312331Q1A1 model with its 24mm lug width is fully compatible with quality aftermarket straps engineered for this measurement. The critical factor is ensuring that your new strap has lugs (the horizontal pins) calibrated precisely at 24mm. Artisanal straps in alligator, shell cordovan, grained calf, and natural rubber are available online and through specialist ateliers.

Strap longevity depends upon usage frequency and tanning quality. Vegetable-tanned alligator on a daily-worn watch subjected to regular immersions has an average lifespan of 2–3 years before replacement becomes necessary. Shell cordovan, owing to superior moisture and tear resistance, may endure 4–5 years. To extend strap life, always dry thoroughly after saltwater contact and apply leather conditioner every six months. If the watch is used exclusively in humid environments, consider alternating with rubber inserts to reduce stress on the leather.