A. Lange & Söhne · 1815

Strap for 1815 Rattrapante Honey Gold Homage to F. A. Lange

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

Lug width20 mm
Case diameter41 mm
Reference425.050
Family1815
MovementA. Lange & Söhne caliber L101.2 Hours, Minutes, Small Seconds | Chronograph, Column wheel, Rattrapante
CaseHoney Gold

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 425.050

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The 1815 425.050, seen from the bench

The A. Lange & Söhne 1815 Ref. 425.050 is a split-seconds chronograph housed in a 41.2mm Honey Gold case, a proprietary warm-toned alloy exclusive to discerning collectors. The in-house caliber L101.2 features a column-wheel chronograph with split-seconds functionality, allowing precise intermediate time measurement. The 20mm lug width accommodates standard aftermarket straps, with typical tapering to 18mm or 16mm at the buckle for optimal proportions and comfort.

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.

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