A little larger than the regular model, but just as slender—and incredibly smart: Thanks to its more generous proportions, Ludwig is unmistakable on wider wrists, despite its understated charm. This also allows more space for the extra-large NOMOS date. The sapphire crystal glass presents NOMOS’ in-house built caliber, combining hand-wound tradition with high-tech.
Impression
More Ludwig: 37.5 millimeters, to be exact. A practical addition: the date. The case tapers downwards and is as round as a pebble—which makes the watch wear even larger and flatter on the wrist.

Specifications
- Ref.
- 231
- Case
-
stainless steel, tripartite
sapphire crystal glass back
- Glass
- sapphire crystal glass
- Winding
- manual
- Dimensions
-
diameter
37.5 mm
height 6.8 mm
lug-to-lug 47.5 mm
- Water resistance
- 3 atm (splash-proof)
- Dial
- galvanized, white silver-plated
- Hands
- steel, tempered blue
- Strap
-
Horween Genuine Shell Cordovan black
lug width 19 mm
Product safety
mechanical wristwatch
Article number: 231
Safety instructions
NOMOS uses 316 L stainless steel for all cases and buckles. This type of stainless steel is not fully free of nickel, but it does not pass nickel on to the skin; the amount of nickel in the alloy is about 12 percent. Thus, the amount of nickel passed to the skin is less than 0.2 micrograms per square centimeter per week and far below the medicinally acceptable amount. Other stainless steel alloys might have a lower percentual amount of nickel in the alloy, but they pass more of it on to the skin.
Manufacturer
NOMOS Glashütte/SA
Roland Schwertner KG
nomos-glashuette.com
product.safety@glashuette.com
Caliber
This hand-wound caliber features an extra-large date, the NOMOS swing system, and a great deal of tradition—such as beautiful polishings that are unique to Glashütte.
- Caliber
-
DUW 4101
manual
- movement height
- 2.8 mm
- diameter
- 14 ¼ lines (32.1 mm)
- Power reserve
- up to 42 hours
- Jewels
- 23
Beautiful things

Outstanding materials
In Chicago, one of the finest leathers in the world is tanned: Horween Genuine Shell Cordovan. Smooth, thick, and almost indestructible, it suits every watch and wearer.

Beautifully presented
Our hand-wound watches are shipped in the NOMOS watch case. Made from black poplar wood, this case has room for your favorite watch and the warranty card.