A. Lange & Söhne
Lange 1 101.025— lug 20mm

The A. Lange & Söhne Lange 1 ref. 101.025 is fitted with a 20mm lug width. This measurement is taken with a caliper between the two case lugs, at the narrowest point in contact with the bezel. All 20mm straps from the Milano Straps catalog are compatible with this reference.

For the Lange 1 101.025 in steel, the Mississippiensis alligator strap — belly or hornback — is the most coherent choice with the watch's formal character. Polished black or navy blue alligator enhances the understated elegance of the steel case. For daily wear, box-calf veal in cognac brown develops a patina over time that enriches the vintage character of the piece.

The strap on the Lange 1 101.025 is removed using a spring bar tool with a lever or pointed tip, inserted into the spring bar seat between the case lug and the strap. Press the spring bar inward to release it. It is advisable to work on a soft surface to avoid scratches to the steel case and use precision tools to avoid deforming the original spring bars.

Yes. Any 20mm aftermarket strap with standard lugs can be mounted on the Lange 1 101.025. Milano Straps offers a selection of handcrafted leather, rubber, and nylon straps that are compatible, available online or customizable through the Casati Milano atelier, with the possibility to personalize length, buckle, and stitching.

The lifespan of a leather strap depends on the quality of the leather, frequency of use, and daily care. A first-cut alligator strap, kept away from moisture and prolonged sweat, maintains structural integrity and appearance for 3-5 years of regular use. Quality veal, with rotation among multiple straps, can last even longer. Milano Straps offers an 18-month warranty against manufacturing defects on all Casati Milano straps.