A. Lange & Söhne · 1815

Strap for 1815 Cuvette Oeding-Erdel

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
Reference323.046
Family1815
MovementA. Lange & Söhne caliber L921.2 Hours, Minutes, Small Seconds
CaseWhite 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 323.046

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The 1815 323.046, seen from the bench

The A. Lange & Söhne 1815 model 323.046 embodies Glashütte's manufacturing philosophy with no decorative excess. The watch features a 40mm white gold case, manual-wind mechanical movement, silver dial with Saxon-style Roman numerals, and off-center seconds at 6 o'clock. The caliber L921.2 is a column-wheel movement with three-quarter platinum plate and fusee escapement, fully visible through the sapphire caseback. The 20mm lug width is proportionally matched to the 40mm case diameter, following Lange's design principles of visual balance between case, lugs, and strap.

Frequently asked questions

What is the lug width of the A. Lange & Söhne 1815 323.046?

The lug width of the A. Lange & Söhne 1815 323.046 is 20 millimetres. This measurement is determined by the proportional architecture of the 40mm case and represents the Saxon standard for this model. The measurement must be taken between the internal points of the case lugs, excluding the spring bars themselves.

Which type of strap is recommended for the 323.046?

Three categories are ideal for the 323.046: American alligator for its interlocking grain that does not compete with the dial; chromium-tanned box calf for constructive solidity and chromatic versatility; shell cordovan for those seeking natural patina development over time comparable to white gold. Straps with excessive texture that conflicts with the design's sobriety are discouraged.

How do you change the strap on an A. Lange & Söhne 1815 323.046?

The strap is changed using a spring bar removal tool. Position the tool in the lug, compress the elastic spring bar inward, remove the old strap end and insert the new one. This operation requires maximum delicacy to avoid scratching the white gold case. At Casati Milano, this operation can be performed with direct consultation.

Does the 323.046 accept compatible aftermarket straps?

Yes, the 323.046 accepts aftermarket straps of elevated constructive quality with a lug width of 20mm (tolerance ±0.3mm). It is essential that the strap be bespoke manufactured for this specific width, not adapted from other sizes. MilanoStraps offers a range of 20mm compatible straps for this case.

How long does a leather strap last on a watch like the 323.046?

A leather strap of quality construction (alligator, calf, shell cordovan) with vegetable or chromium tanning lasts an average of 2–4 years with daily wear, up to 5–7 years with occasional use. Duration depends on exposure to humidity, extreme temperatures and frequency of wear. More noble leathers such as shell cordovan tend to develop character over time rather than degrade.

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