A. Lange & Söhne · Saxonia

Strap for Langematik Perpetual Honey Gold

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

Lug width20 mm
Case diameter38.5 mm
Reference310.050 (aka: 310050)
FamilySaxonia
MovementA. Lange & Söhne caliber L922.1 Additional 24 hours Hand (fixed), hours, minutes, small seconds | big date, day, month, perpetual calendar, leap year | moonphase
Year2019
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 Saxonia 310.050 (aka: 310050)

Selected for the 20 mm lug width · workshop selection

All 20 mm straps →

The Saxonia 310.050 (aka: 310050), seen from the bench

The A. Lange & Söhne Saxonia 310.050 embodies rigorous German watchmaking philosophy from the Glashütte tradition. The 38.5 mm Honey Gold case combines warm tonality with functional aesthetics, housing the L922.1 manual-wind caliber featuring perpetual calendar, moon phase, date, day, and month complications. The fixed 20 mm lug width maintains proportional harmony with the case diameter and represents the only personalization variable of this conceptual monolith design.

Frequently asked questions

What is the lug width of the A. Lange & Söhne Saxonia 310.050?

The lug width of the Saxonia 310.050 is 20 mm. This measurement is constant across all Saxonia collection models and represents the optimal proportion relative to the 38.50 mm case diameter. To verify it, measure the distance between the two lugs on the case shoulders.

Which type of strap pairs best with the Saxonia 310.050?

Alligator in dark cognac tones represents the canonical choice, as the natural reptile texture communicates sophistication without competing visually with the dial. Vegetable-tanned calf offers a more informal aesthetic with a natural patina that develops over time. For summer wear, NATO straps in silk or heavy cotton provide practicality, whilst shell cordovan in burgundy creates bold contrast with the honey gold.

How do I change the strap on my A. Lange & Söhne Saxonia 310.050?

The Saxonia 310.050 uses standard spring bar attachments. Remove the bars by pushing inward with a spring bar tool, then slide out the old strap. Insert the new strap, ensuring the side holes in the leather align perfectly with the lugs. Reinsert the spring bars until you hear a click. If unfamiliar with the process, consult a qualified watchmaker.

Can I use an aftermarket 20 mm strap on my Saxonia 310.050?

Yes, any strap with a 20 mm lug width is mechanically compatible. However, from an aesthetic standpoint, we recommend straps crafted from equivalent quality materials (alligator, vegetable-tanned calf, shell cordovan). The thickness at the attachment point must be precise to avoid lateral play between the lug and strap.

How long does a leather strap last on an A. Lange & Söhne Saxonia 310.050?

Longevity depends on material and usage patterns. An alligator strap typically lasts 4–6 years with daily wear; vegetable-tanned calf resists 3–4 years due to lower density; shell cordovan exceeds 7 years owing to the natural compactness of the leather. Sun exposure, humidity, and perfume accelerate ageing. Regular maintenance (annual cleaning and conditioning) significantly extends useful life.

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