A. Lange & Söhne · 1815

Strap for 1815 Chronograph Boutique Edition Pulsometer

Takes 20 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width20 mm
Case diameter40 mm
Reference414.026
Family1815
MovementA. Lange & Söhne caliber L951.5 Hours, Minutes, Small Seconds | Chronograph, Column wheel, Flyback
CaseSilver

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the 1815 414.026

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The 1815 414.026, seen from the bench

The A. Lange & Söhne 1815 414.026 exemplifies Saxon manufacturing aesthetic with a 39.50 mm silver case, white dial, and Dauphine hands revealing the visible movement through the sapphire caseback. The 20 mm lug width is precisely proportioned to the case diameter and requires a tailored strap solution. The L951.5 caliber features a column-wheel chronograph with flyback mechanism, representing the technical benchmark of the manufacture. Glashütte finishing, platinum rotor, and blued steel bridges characterize the movement. Silver case material develops a natural patina over time and is gentler on strap leather, reducing wear at the lug attachment point.

Frequently asked questions

What is the exact lug width of the A. Lange & Söhne 1815 414.026?

The lug width of the 414.026 is precisely 20 mm, measured internally between the lug attachments on the case. This dimension is fixed and mandatory for third-party strap compatibility.

Which strap material is recommended for the A. Lange & Söhne 1815 414.026?

Alligator leather with vegetable tanning in warm cognac brown is the reference choice: it offers uniform grain, sophisticated ageing patina, and balanced chromatic contrast against the silver case. Alternatively, burgundy shell cordovan for dramatic effect, or calf for daily versatility.

How do you change the strap on an A. Lange & Söhne 1815 414.026?

Use a spring bar tool to gently extract the pin holding the strap to the case lugs. Insert the new strap ensuring the 20 mm lug width is exact, then reinsert the pin. Avoid excessive force to prevent damage to the silver lugs.

Can an aftermarket strap be mounted on the 414.026?

Yes, provided the lug width is exactly 20 mm and the material respects the case finish (avoiding abrasive synthetic rubbers). Artisanal straps such as those from MilanoStraps guarantee structural compatibility and construction quality equal to the timepiece.

How long does a leather strap last on an A. Lange & Söhne 1815?

A quality alligator strap lasts 3–5 years with regular daily wear. Shell cordovan resists beyond 7 years. Longevity depends on maintenance (avoid prolonged moisture), sun exposure, and rotation with other straps. MilanoStraps warranty covers 18 months 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 →

Casati Milano · Via XX Settembre 15, Milan · by appointment only