A. Lange & Söhne · 1815

Strap for Tourbograph Perpetual 'Pour le Mérite' Platinum / Silver

Takes 18 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width18 mm
Case diameter43 mm
Reference706.025
Family1815
MovementA. Lange & Söhne caliber L133.1 hours, minutes | date, day, leap year, month, perpetual calendar | Chronograph, column wheel, Flyback, Rattrapante | moonphase | Chain & Fusée, tourbillon escapement
Year2017
CasePlatinum

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 706.025

Selected for the 18 mm lug width · workshop selection

All 18 mm straps →

The 1815 706.025, seen from the bench

The A. Lange & Söhne Tourbograph Perpetual 'Pour le Mérite' reference 706.025 from the 1815 family is a platinum case measuring 43mm with an 18mm lug width. Powered by the caliber L133.1 developed at Glashütte, it combines a complete perpetual calendar with moonphase, split-seconds chronograph with column wheel and flyback function, and a tourbillon with chain and fusée escapement. The movement incorporates hours, minutes, date, day, month, leap year, and mechanical perpetual calendar requiring no corrections until 2100.

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