Nomos Glashütte · Ludwig

Strap for Ludwig neomatik 39 75 Jahre Grundgesetz

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

Lug width19 mm
Case diameter39 mm
Reference250.S3
FamilyLudwig
MovementNomos Glashütte caliber DUW 3001 hours, minutes, small seconds
Year2024
CaseStainless Steel

Spring bar

Swiss Standard universal spring bars

The right category for this model · 316L steel, all lug widths 13–26 mm

Straps for the Ludwig 250.S3

Selected for the 19 mm lug width · workshop selection

All 19 mm straps →

The Ludwig 250.S3, seen from the bench

The Nomos Glashütte Ludwig is powered by the in-house DUW 3001 caliber with hour, minute and small seconds indications. The watch has 19mm lugs and maintains the classic proportions of the Bauhaus design. The manual-winding movement provides a power reserve in line with the standards of the German manufacture.

Frequently asked questions

What is the lug width of the Nomos Glashütte Ludwig 250.S3?

The Nomos Glashütte Ludwig 250.S3 features a lug width of 19 mm. This dimension is proportioned to the 38.50 mm case diameter and ensures the correct aesthetic and mechanical balance of the model. The measurement refers to the external distance between the two anchor points of the lugs at the case. It is essential to verify this dimension before purchasing an aftermarket strap, as even minor variations compromise proper fit.

Which strap is most suitable for the Nomos Glashütte Ludwig 250.S3?

The ideal strap for the 250.S3 must respect the Bauhaus philosophy of the model. An alligator strap with vegetable tanning in neutral tones (dark brown, grey) is the most coherent choice: the natural grain of the leather translates the constructive rigour of the case. Alternatively, vegetable-tanned calf leather that develops patina over time harmonises with the stainless steel. A linen NATO strap in blue or anthracite grey offers a more casual solution whilst maintaining minimalist elegance. Pure FKM rubber in black represents the most contemporary and functional option.

How do you change the strap on a Nomos Glashütte Ludwig 250.S3?

Strap replacement on the Ludwig 250.S3 is accomplished via spring bars located at the lug extremities. Using a dedicated spring bar removal tool—available through certified Nomos repairers or specialist retailers—apply light vertical pressure to release the bar from its seat. Once removed, the strap slides away from the case. Installation of the new strap is the reverse procedure: the spring bar must click into position with an audible sound. This operation should be performed on a soft surface to avoid case scratching.

Are there aftermarket straps compatible with the 250.S3?

Yes, 19 mm aftermarket straps are compatible with the Ludwig 250.S3. However, it is imperative to select materials and constructions that dialogue with the model's style. Quality straps—full-grain vegetable-tanned leather, linen NATO, technical FKM rubber—maintain aesthetic coherence with the stainless steel case. We advise against glossy synthetic materials or inadequate construction: the Ludwig tolerates no compromises in finishing. Lugs must be proportioned to case diameter and the passant must slide smoothly around the case without friction.

What is the lifespan of a leather strap on a Nomos Glashütte Ludwig 250.S3?

A quality leather strap—alligator, calf, shell cordovan—on a Nomos Glashütte Ludwig 250.S3 has an average lifespan of 2-4 years of daily use, considering exposure to humidity, perspiration, and temperature variations. Vegetable tanning develops natural patina, an indicator of controlled aesthetic wear, yet maintains structural integrity longer than chrome tanning. Factors extending lifespan: rotation amongst multiple straps (leather rest between uses), careful drying after rain, avoidance of prolonged salt water contact. A well-maintained strap can reach 5 years. Replacement is straightforward and recommended for hygiene and mechanical safety reasons.

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