A handshake is all you need to wind your watch: Tangente’s larger, more robust brother ticks automatically. This multiple prizewinning watch quickly became a classic as well—and is the perfect fit for larger wrists. Its caliber raised NOMOS Glashütte to the status of a caliber manufacturer and, since then, has ensured outstanding accuracy.
Prizes and awards
Red Dot, iF, Goldene Unruh: Tangomat has them all.



Impression
At first glance, this watch appears like a somewhat larger Tangente. But Tangomat is more—equipped with the automatic caliber DUW 5001, this watch has a taller profile, for wrists with substance.

Tim has a wrist circumference of 18 cm (7.1") and a strap length of M.
Specifications
- Ref.
- 641
- Case
-
stainless steel
stainless steel back
fixed with six screws
- Glass
- sapphire crystal glass
- Winding
- automatic
- Dimensions
-
diameter
38.3 mm
height 8.2 mm
lug-to-lug 48.0 mm
- Water resistance
- 3 atm (splash-proof)
- Dial
- galvanized, white silver-plated
- Hands
- steel, tempered blue
- Strap
-
Horween Genuine Shell Cordovan black
lug width 20 mm
Product safety
mechanical wristwatch
Article number: 641
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
The first NOMOS automatic caliber and the one with which NOMOS Glashütte launched its in-house caliber production in 2005. Since then, it has been ticking with outstanding winding accuracy—and now with our NOMOS swing system too, which is to say: with independence at its heart.
- Caliber
-
DUW 5001
automatic
- movement height
- 4.3 mm
- diameter
- 13 ¾ lines (31 mm)
- Power reserve
- up to 43 hours
- Jewels
- 26
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 automatic timepieces come in an elegant leather wallet—the perfect companion for weekend trips and world tours. The black, full grain leather is wonderfully soft and protects your timepiece beautifully.