Strap for 1815 Chronograph Diamond / MOP

The lug width of the A. Lange & Söhne 1815 823.029 is 20 mm. This dimension is the standard for watches with a 39.50 mm case and is essential to verify with a digital calliper, positioning the tool between the lug pins, to ensure perfect compatibility with aftermarket straps.

Vegetable-tanned alligator represents the canonical choice for the 823.029. The natural texture and golden patina it develops over time enhance the white gold case without competing visually. Shell cordovan offers a sophisticated alternative with a mirror-like surface that catches light like the metal. For daily wear, vegetable-tanned calf in dark tones ensures both practicality and elegance.

To change the strap on the 823.029, you must remove the lug pins using a specific and delicate pin remover, as the white gold case is sensitive to scratches. If you lack experience, entrust the operation to a qualified watchmaker or Casati Milano, where you can follow the process and request any strap keeper adjustments.

Yes, thanks to the standard 20 mm lug width, the 823.029 accepts numerous quality artisanal straps. Milanostraps.it offers a wide selection of 20 mm straps in various materials and finishes. It is crucial to always verify that the strap has been made specifically for this lug width to avoid play or misalignment.

The lifespan of a leather strap depends on use intensity, material, and tanning quality. Vegetable-tanned alligator can last 5-7 years with moderate daily use and regular maintenance. Shell cordovan tends to last longer (7-10 years), whilst calf has a slightly shorter lifespan (3-5 years). Casati Milano guarantees 18 months against manufacturing defects and offers restoration and replacement services.