Strap for Formula 1 Calibre 6 43 Stainless Steel / White / Bracelet

The lug width of the TAG Heuer Formula 1 WAZ2013.BA0842 is 20 millimetres. This measurement is the standard for straps compatible with this model. You can verify it by measuring with a calliper the distance between the two lugs where the strap attaches to the case. 20mm straps found online or from specialist artisans are fully compatible with this timepiece.

For the WAZ2013.BA0842, we recommend straps in alligator or full-grain vegetable-tanned leather for formal wear, whilst vegetable-tanned grained calf leather in black is perfect for daily use. For racing enthusiasts, a ballistic nylon NATO strap is highly practical and authentic. A shell cordovan strap in burgundy tones creates a very refined aesthetic pairing. Your choice depends on your personal style and desired frequency of wear.

Changing the strap requires a dedicated spring bar removal tool. Position the watch on a soft surface, locate the small recess in the case at the strap attachment points, insert the removal tool to compress the spring bar, and gently remove the strap. For installation, insert the spring bar ends through the new strap holes, align the strap with the lugs, and release the bar carefully. We recommend caution to avoid scratching the case.

Yes, all 20mm aftermarket straps are compatible with the WAZ2013.BA0842, as this lug width is a universal standard. Artisanal Milanese straps, particularly those crafted by Casati Milano, are specifically designed for this measurement and offer superior construction quality and finishes compared to standard straps. Compatibility is guaranteed, but always verify that the strap is specified for 20mm.

The lifespan of a leather strap depends on the tannery quality and frequency of use. An artisanal alligator or shell cordovan strap with vegetable tanning typically lasts 3-4 years with daily wear, up to 5-6 years with rotation between multiple straps. A grained calf strap usually lasts around 2-3 years. The patina and micro-imperfections that develop over time are desirable characteristics of authentic leather. Casati Milano guarantees 18 months on every handcrafted strap.