Technical Archive

Nomos Glashütte
Tangomat 629— lug 20mm

Nomos Glashütte Tangomat 629: 20mm strap. Alligator, box calf, shell cordovan and rubber, cut and stitched in Milano. Choose your leather.

Tangomat Norma

Artisanal Note

"This model requires a precise 20mm lug width to preserve the original sartorial balance."

Technical Specifications

Nomos Glashütte 629
Lug Width
20 mm

The essential strap measurement.

Browse 20mm straps →
Reference

629

Movement

Nomos Glashütte caliber Epsilon Hours, Minutes, Small Seconds

The Heritage

The Nomos Glashütte Tangomat 629 is a 38.3 mm stainless steel automatic watch embodying Saxon watchmaking tradition. It features the Epsilon calibre, an automatic movement with balanced winding, running at 3 Hz. The watch includes hours, minutes, and small seconds on a silvered dial with applied indices. The 20 mm strap size follows classical proportions derived from the case diameter and lug depth, a calculation Glashütte has applied since the 19th century. A transparent caseback reveals the anchor escapement and chronometric regulation.

FAQ

What is the lug width of the Nomos Glashütte Tangomat 629?

The lug width of the Tangomat 629 is 20 mm. This measurement is determined by the proportions of the 38.3 mm case and represents a classical standard faithful to Glashütte's watchmaking tradition. A 20 mm strap fits perfectly between the lugs without lateral play or unwanted protrusions.

Which strap is recommended for the Tangomat 629?

For the Tangomat 629, a vegetable-tanned alligator strap in cognac colour is recommended, as it harmonises naturally with the brushed case and silver dial. Alternatively, a brown tobacco calf leather or navy cotton NATO offer versatility while maintaining the model's elegance. Dark FKM rubber is suitable for daily and sporting wear.

How do you change the strap on the Nomos Glashütte Tangomat 629?

The Tangomat 629 strap is changed by extracting the lug pins with a specialised tool. Position the tool's blade in the slot carved into the lug and gently push the pin outward. Repeat on the other side and remove the worn strap. Insert the new strap by aligning the holes and pushing the pins until they lock completely.

What is the difference between an aftermarket strap and an original Nomos strap?

Quality aftermarket straps guarantee dimensional compatibility (20 mm) but offer greater variety in materials, finishes and colours compared to original Nomos straps. A well-crafted vegetable-tanned aftermarket strap develops a patina over time that harmonises with the case patina, creating an aesthetic harmony often superior to industrially-produced straps.

How long does a leather strap last over time?

A quality leather strap, especially one made with vegetable tanning, has an average lifespan of 5-8 years with daily wear and proper maintenance. The natural patina that develops makes the strap increasingly beautiful. Wear is most rapid in stress zones (keeper and buckle). Regular conditioning with natural waxes significantly extends longevity.