Strap for Alter Ego Stainless Steel - Diamond / MOP / Bracelet

The lug width of the TAG Heuer Alter Ego WP1319.BA0751 is 20mm. This measurement is integrated into the case geometry and represents the distance between the spring bars that support the strap. To verify this measurement on your watch, use a digital calliper positioned perpendicularly between the internal attachments, ensuring precise measurement essential for aftermarket strap compatibility.

For this ladies' timepiece, we recommend straps in vegetable-tanned alligator for formal elegance with profound texture, shell cordovan for longevity and natural patina evolution over time, softened calf for chromatic versatility and adaptability, or natural rubber for sporty practicality. Selection depends on context: formal situations require alligator or cordovan, daily wear favours calf leather, casual use accommodates rubber or NATO.

The process is straightforward: position your watch with the lug facing you, locate the small hole or slot on the lug where the spring bar pin sits. Use a dedicated spring bar tool or thin flat instrument, insert it into the hole and gently push the pin inward until it releases. Extract the pin completely, remove the old strap, and insert the new one, repositioning the pin into its designated housings. Ensure the pin is fully seated before wearing the watch.

Absolutely. The WP1319.BA0751 is compatible with any strap featuring 20mm lug width, a specification that enables extensive selection within the aftermarket. Specialised artisan manufacturers such as Milano Straps offer straps in premium leathers (alligator, shell cordovan, vegetable-tanned calf) customisable in colour, initials, and buckle type (deployante, standard buckle), with construction guarantees substantially exceeding OEM offerings.

The lifespan of a leather strap varies based on material and usage patterns. A quality softened calf typically lasts 3–5 years with daily wear. Vegetable-tanned alligator achieves 5–7 years owing to fibre density. Shell cordovan, extracted from the subcutaneous layer, exceeds 10 years with standard maintenance (avoid direct water exposure, dry after rain, apply nourishing balms annually). Leather softens and develops positive patina with time, unlike synthetic straps which degrade. Natural vulcanised rubber straps maintain elasticity and functionality for 5–8 years.