A. Lange & Söhne
1815 233.026— lug 19mm

The lug width of the A. Lange & Söhne 1815 233.026 is 19 millimetres. This dimension is specific to the 40mm case and ensures balanced proportions between the case and strap. Measuring the lug width correctly involves verifying the perpendicular distance between the inner walls of the lugs, ensuring universal compatibility with any replacement strap.

For the white gold 233.026, we recommend dark brown alligator (mahogany or dark brown) for classical elegance, or vegetable-tanned calf leather in cognac tones for a warmer approach. A Cordura NATO in grey or dark blue is appropriate for informal contexts without compromising the watch's constructive character. Avoid synthetic materials and nickel buckles that could diminish the value of the timepiece.

Changing the strap on a 1815 requires specific tools: a spring bar tool or extraction pen for the lugs. Position the watch on a soft pad, insert the tool tip into the inner spring slot of the lug, lift gently and slide the spring outward. Repeat on both sides. To avoid damage to the white gold case, it is advisable to entrust this task to a professional or follow certified tutorials.

Yes, any strap with 19mm lug width is universally compatible with the 233.026. High-quality artisanal straps, such as those offered by milanostraps.it, provide material and finishing variants unavailable in the official catalogue, allowing aesthetic personalisation without constructive compromises. Always verify that the strap is manufactured with noble leathers and robust buckles.

A quality leather strap, such as alligator or vegetable-tanned calf, typically lasts 3-5 years with regular daily use. Durability depends on sun exposure, humidity and cleaning frequency. An artisanal strap with an 18-month warranty on manufacturing defects offers protection against initial construction flaws. After this period, wear is natural and the strap can be replaced to maintain the watch in optimal condition.