Strap for Tourbillon Pour le Mérite

The lug width of the A. Lange & Söhne Tourbillon 701.001 is 20 millimetres. This measurement represents the distance between the two lugs on the case and is essential for selecting a compatible strap. An inaccurate measurement would result in a strap that does not fit properly to the case, potentially compromising both aesthetics and wearability.

For this yellow gold timepiece, alligator leather represents the most natural choice from both an aesthetic and tactile perspective. The granular texture of the skin creates an elegant counterpoint to the precious metal. Excellent alternatives include vegetable-tanned calf leather, which develops a biographical patina over time, and shell cordovan, which reflects light consistently with the gold. Rubber or fabric straps are not recommended, as they would contradict the intrinsic elegance of the movement.

Strap replacement is accomplished via the lateral lugs (anse) on the case. Using a dedicated tool (spring bar tool), remove the elastic pin that secures the original strap to the lugs. Next, insert the new strap by aligning its holes with the lugs and reinsert the elastic pin until it clicks into place. We recommend performing this operation with care or entrusting it to an experienced watchmaker to avoid damage to the case.

Yes, absolutely. The essential requirement is that the strap is compatible with the 20-millimetre lug width. High-quality artisanal straps crafted from alligator, calf, or shell cordovan not only match the watch aesthetically but often enhance the wearing experience through bespoke construction and carefully selected materials. Partnering with craftspeople who understand the complexities of haute horlogerie guarantees results superior to mass-market alternatives.

Longevity depends on material selection, frequency of use, and maintenance practices. A high-quality alligator strap typically lasts between 3 and 5 years with daily wear, developing a desirable patina. Vegetable-tanned calf leather, being softer, tends to have a slightly shorter lifespan (2-4 years), whilst shell cordovan, owing to its natural density, can exceed 5 years. Rotating between multiple straps, ensuring proper drying after moisture exposure, and avoiding excessive creasing significantly extend the usable life.