Strap for Double Split Japan

The lug width of the A. Lange & Söhne Saxonia 404.048 is 22mm. This dimension was chosen by Lange to ensure correct proportions between the case diameter (43.20mm) and the strap attachment. Measurement should be taken by positioning a digital calliper between the two internal attachment holes: the distance must be precisely 22mm to ensure compatibility with standard straps.

Mississippi alligator in havana tone is the most harmonious choice with the yellow gold case, as its natural texture (regular grain) dialogues elegantly with the geometric lines of the watch. However, smooth calf leather, shell cordovan with vegetable tanning and even textile straps represent sophisticated alternatives, provided they are of artisanal quality and paired with a buckle in yellow gold or polished steel.

To change the strap on this model, locate the two attachment pins (lugs) situated on the sides of the case at the level of the spring bars. Using a dedicated spring bar tool, press the pin inward to release the internal spring, then extract the pin. Repeat on the other side. Insert the new strap by aligning its holes with the pins, press until the springs click into place, and verify that the strap is firmly secured. We recommend entrusting this operation to a professional to avoid damage to the gold case.

Yes, any strap with a 22mm lug width is compatible with the 404.048. It is essential to verify that the manufacturer has respected the standard industrial tolerance (22mm ± 0.5mm). Artisanal straps of quality, such as those crafted by Casati Milano for milanostraps.it, guarantee controlled dimensional precision and offer the possibility of personalising material, colour and buckle type to create a coherent pairing with your Lange's aesthetic philosophy.

The lifespan of a leather strap depends on the material, frequency of use and environmental conditions. A quality artisanal alligator or shell cordovan, with vegetable tanning, typically lasts 5–8 years if worn daily, thanks to its dense fibre structure and the natural ageing that increases its resistance. Calf leather may last 3–5 years under the same conditions. Exposure to moisture, heat and direct sunlight reduces longevity. Casati Milano offers an 18-month warranty on manufacturing defects; preventative strap replacement is recommended when the leather begins to show cracks or loss of elasticity.