A. Lange & Söhne
Lange 1 151.025— lug 20mm

The A. Lange & Söhne Lange 1 151.025 is fitted with a strap with a lug width of 20mm. To verify this directly on your watch, measure with a caliper the internal distance between the two lugs of the case: the correct value is 20mm.

For the stainless steel reference 151.025, Louisiana alligator with polished grain in cognac or dark brown tones is the most coherent choice with the formal character of the manufacture. Those seeking a more contemporary style can opt for box grain calf leather or a NATO fabric strap, which creates an effective texture contrast with the stainless steel surfaces.

The Lange 1 strap is removed with a dedicated springbar tool inserted into the internal channel of the lug. It is advisable to use a fine-tipped tool to avoid scratching the stainless steel case. The operation takes just a few seconds and does not require technical intervention; if in doubt, Casati Milano offers the replacement service by appointment.

Yes. Any aftermarket strap with a 20mm lug width is compatible with the Lange 1 151.025, provided it uses standard 1.8mm spring bars. On Milano Straps, a selection of artisanal straps in various materials is available, all with 20mm width, compatible with this reference.

Durability depends on the material and daily use. A quality alligator strap, with proper rotation and kept away from excessive sweat and water, maintains structural and aesthetic integrity for 2-4 years. Calf leather tends to soften more quickly but develops a personal patina appreciated by collectors. Casati Milano straps are covered by an 18-month warranty against manufacturing defects.