Strap for Datograph Perpetual Platinum / Silver

The lug width (ansa width) of the A. Lange & Söhne Saxonia 410.025 is 20 millimetres. This measurement represents the internal spacing between the two lugs of the case and determines the compatible strap width. It is essential to verify this dimension before purchasing an aftermarket strap to ensure proper fit and visual harmony with the case.

For the Saxonia 410.025, we recommend a strap in black or dark brown alligator, as it reflects the formal and austere identity of this dresswatch. Alternatively, shell cordovan is excellent for those seeking a natural patina that evolves over time. For informal occasions, a vegetable-tanned calf strap or quality rubber maintains elegance whilst ensuring comfort.

Strap replacement is performed via the spring bars (spring-loaded pins) housed in the case lugs. Using a spring bar tool, compress the internal spring and extract the pin, allowing removal of the old strap and installation of the new one. We recommend entrusting this operation to a professional watchmaker to prevent damage to the platinum lugs.

Yes, any strap measuring 20mm in width with standard spring bars is compatible with the Saxonia 410.025. However, it is essential to select quality materials (alligator, shell cordovan, vegetable-tanned calf) that respect the aesthetic and constructive positioning of this timepiece. Milanostraps offers a curated collection of 20mm straps specifically selected for dresswatch movements of this calibre.

The lifespan of a leather strap varies according to material, frequency of use and climatic conditions. Alligator and shell cordovan typically offer 3–4 years of daily wear before showing significant signs of fatigue. Vegetable-tanned calf tends to last slightly less, whilst a quality rubber can exceed 5 years. Casati Milano provides an 18-month warranty against manufacturing defects on their artisanal straps.