A. Lange & Söhne
1815 706.025— lug 18mm

The 706.025 reference from the 1815 family has an 18mm lug width, measured as the internal distance between the case horns at the spring bar attachment point. For optimal fit, a strap with a taper from 18mm to 16mm or 17mm is recommended.

For a platinum case with a movement of this complexity, polished alligator leather in midnight blue, black, or dark tobacco tones is the most coherent choice with Lange aesthetics. Smooth calf in saddle finish is ideal for more discrete daily wear. All materials are available in 18mm straps at milanostraps.it.

The strap is removed by operating the spring bars with a dedicated flathead screwdriver or strap changing tool. Insert the bar into the lug hole, compress, and slide the strap out laterally. The operation takes approximately two minutes and does not require professional tools. On a platinum watch, however, it is advisable to have a watchmaker or specialized atelier perform the change to avoid scratching the case.

Yes. Any strap with an 18mm lug width and standard spring bars is compatible with the 706.025 reference. Milanostraps.it offers a selection of 18mm artisanal straps in alligator, calf, NATO, and rubber, crafted with stitching, keepers, and buckles proportioned to the 43mm case.

Durability depends on the material, usage, and maintenance. A quality alligator strap with saddle stitching and goat leather or suede interior lining lasts on average between 2 and 4 years with regular use. Prolonged contact with water, sweat, or perfumes accelerates deterioration: it is recommended to alternate at least two straps and store them away from direct light.