A. Lange & Söhne
1815 425.025— lug 20mm
A. Lange & Söhne 1815 425.025: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 20mm lug width to preserve the original sartorial balance."
Technical Specifications
A. Lange & Söhne 425.025The essential strap measurement.
Browse 20mm straps →425.025
A. Lange & Söhne caliber L101.2 Hours, Minutes, Small Seconds | Chronograph, Column wheel, Rattrapante
The Heritage
Compatible Straps
Selected for the 20mm lug width of the 1815
FAQ
What is the lug width of the A. Lange & Söhne 1815 Ref. 425.025?
The lug width of the A. Lange & Söhne 1815 Ref. 425.025 measures 20mm. To verify, measure with a digital caliper the internal distance between the two lugs of the case at the strap attachment point.
What is the best strap for the A. Lange & Söhne 1815 425.025 in platinum?
For a 950 platinum case, an alligator strap with symmetrical belly grain is the most coherent choice: the natural texture complements the matte finish of the metal. Alternatively, black or midnight blue box calf leather ensures daily elegance without competing with the complexity of the chronograph dial.
How do you change the strap on the A. Lange & Söhne 1815 425.025?
The strap is replaced using a dedicated springbar tool to remove the spring bars from the lugs. On a platinum watch of this caliber, it is recommended to entrust the operation to a watchmaker or the Casati Milano atelier to avoid scratching the case.
Are there aftermarket straps compatible with the A. Lange & Söhne 1815 425.025?
Yes. Any strap with a 20mm attachment is technically compatible with the A. Lange & Söhne 1815 425.025. On milanostraps.it you will find a selection of artisanal 20mm straps in alligator, calf, and rubber, or you can request a bespoke strap through the Casati Milano atelier.
How long does a leather strap last on an A. Lange & Söhne 1815 425.025?
A quality leather strap — alligator or vegetable-tanned calf — has an average lifespan of 12–24 months with regular use, varying based on exposure to sweat, water, and heat. Casati Milano straps are covered by an 18-month warranty against manufacturing defects.
The next step
The right strap isn’t chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →By appointment only · Milan
The atelier's website: casatimilano.com