Strap for Carrera Automatic Stainless Steel / Blue / Bracelet

The lug width (ansa width) of the TAG Heuer Carrera WBN2012.BA0640 is 21 millimetres. This measurement represents the distance between the inner shoulders of the case where the strap is seated. To verify it, remove the original strap and measure the metal shoulders directly using a digital calliper. An accurate measurement is essential to avoid residual play or difficulty inserting an aftermarket strap.

The best strap depends on intended use and aesthetic preferences. For formal contexts, black alligator with a steel deployante clasp enhances the dial's austerity. For daily wear, maroon-brown calf leather provides warmth and practicality. Shell cordovan, for those seeking natural patina and longevity, develops deep lustre over years. FKM rubber remains the optimal choice for aquatic or athletic environments, guaranteeing resilience and cleaning ease.

To change the strap, remove the spring bars using a dedicated extraction tool. Position the tool under the spring bar and apply gentle downward pressure to release the spring, then extract the bar. Once removed, the strap disengages easily. To install the new strap, align the holes and reintroduce the spring bars with compressed springs, verifying complete insertion flush with the lugs. Perform this operation on a soft surface (cloth) to prevent scratches.

Yes, any strap with a 21-millimetre lug width is compatible with the WBN2012.BA0640. Artisanal leather straps (alligator, calf, shell cordovan) are commonly available in this width. Always verify that the new strap has the same lug width and compatible spring bars (typically 18 millimetres in diameter). Milanostraps.it offers a complete selection of 21mm straps customisable in premium leathers, initials and stitching colours.

The lifespan of a leather strap depends on material, use and maintenance. Alligator and shell cordovan, properly maintained, last 5–8 years before requiring replacement. Calf leather, being less dense, has an average lifespan of 3–5 years with daily wear. FKM rubber typically lasts 4–6 years before losing elasticity. To extend strap life, avoid prolonged water exposure, occasionally apply protective balm, and allow leather to dry completely after moisture contact. Casati Milano offers an 18-month warranty on all artisanal straps.