Nomos Glashütte
Tetra 423— lug 20mm
Nomos Glashütte Tetra 423: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.
Artisanal Note
"This model requires a precise 20mm lug width to preserve the original sartorial balance."
Technical Specifications
Nomos Glashütte 423The essential strap measurement.
Browse 20mm straps →423
Nomos Glashütte caliber DUW 3001 Hours, Minutes, Small Seconds
The Heritage
Compatible Straps
Selected for the 20mm lug width of the Tetra
FAQ
What is the exact lug width of the Nomos Glashütte Tetra 423?
The Nomos Glashütte Tetra 423 features 20-millimetre lugs. This measurement is specific to this model and requires watch straps compatible with the same width. To verify the compatibility of an aftermarket strap, measure the perpendicular distance between the two pins that delimit the lugs using a digital calliper or precision ruler.
Which leather strap is best suited for the Tetra 423?
For the Tetra 423, a strap in fine-grained alligator represents the optimal aesthetic choice: it emphasises the minimalist dressy character of the watch and ages with elegant patina. Alternatively, vegetable-tanned calf leather offers greater versatility and a texture that develops naturally over time, creating visual authenticity consistent with the artisanal philosophy of the manufacture.
How do I change the strap on the Nomos Glashütte Tetra 423?
Position the watch on a protected surface with the case facing upward. Use a spring bar tool (dedicated implement for pin removal) to gently compress the pin from one side, creating space to extract it from the lug. Remove the old strap, align the new strap's holes with the axis points of the lug, and reintroduce the pin using the spring bar tool. Verify that the pin is fully inserted and secure before wearing the watch.
Are there any compatible aftermarket straps for the Tetra 423?
Yes. All straps with 20-millimetre lug width are compatible with the Tetra 423. Milano Straps offers artisanal leather straps (alligator, calf, shell cordovan), premium canvas NATO straps, and technical rubber, all configured for 20-millimetre attachments. You may personalise the strap according to colour preferences and daily usage requirements.
What is the average lifespan of a leather strap for the Tetra 423?
An artisanal leather strap, subject to normal usage conditions (worn 4–5 days per week), has an average lifespan of 3–5 years before material elongation or wear necessitates replacement. Lifespan varies based on frequency of use, ambient humidity, maintenance (occasional cleaning, conditioning with specific creams), and leather type. An alligator strap tends to last longer than standard calf leather.