A. Lange & Söhne · 1815

Strap for 1815 Moonphase F.A. Lange Homage

Takes 19 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.

Lug width19 mm
Case diameter37 mm
Reference212.050
Family1815
MovementA. Lange & Söhne caliber L943.2 hours, minutes, small seconds | moonphase
Year2010 - 2013
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 212.050

Selected for the 19 mm lug width · workshop selection

All 19 mm straps →

The 1815 212.050, seen from the bench

The A. Lange & Söhne 1815 212.050 exemplifies German watchmaking precision with a 37.40 mm Honey Gold case housing the manual L943.2 calibre. The silver dial features moonphase indication, small seconds, and minute track, visible finishing work shown only through the sapphire caseback. The 19 mm lug width accommodates the case's proportions, requiring precise strap selection to maintain aesthetic balance and prevent accelerated wear.

Frequently asked questions

What is the exact lug width of the A. Lange & Söhne 1815 212.050?

The lug width of the A. Lange & Söhne 1815 212.050 is 19 millimetres. This dimension is measured from the inner shoulder of one lug to the inner shoulder of the opposite lug, perpendicular to the case. It is critical to use a strap with lugs specifically calibrated for 19 mm to avoid premature wear and ensure correct wrist fit.

Which strap material is most appropriate for the 212.050?

Alligator in vegetable tanning is the traditional choice, with regular grain reflecting Saxonian construction philosophy. Shell cordovan represents the alternative for exceptional durability and deep patina development over time. Full-grain calf leather offers versatility in tone and tactile softness. NATO straps maintain contemporary lightweight design, whilst vulcanised rubber suits technical and sports use.

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

The procedure requires a spring bar tool and extreme care to avoid scratching the Honey Gold case. The lug screws are opened from the caseback, the retention springs are carefully extracted, and the strap is replaced ensuring the lugs are perfectly aligned with the case shoulders. We recommend this operation be performed by an expert or through Casati Milano's service for maximum safety.

Are there quality aftermarket straps available for the 212.050?

Yes, artisanal straps crafted from noble natural leathers (alligator, shell cordovan, full-grain calf) in vegetable tanning offer construction quality equal to or exceeding factory straps. It is essential that they be specifically manufactured with lugs calibrated for 19 mm and that they respect the aesthetic proportions of the case. Milanostraps and Casati Milano offer dedicated selections and full personalisation services.

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

Durability depends on material and usage. An alligator strap in vegetable tanning resists 3-5 years of daily use before replacement, developing desirable patina. Shell cordovan exceeds 7-10 years whilst maintaining structural integrity. Full-grain calf sits at 2-4 years. All Casati Milano straps benefit from an 18-month warranty on manufacturing defects, and can be regenerated through professional reconditioning.

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