The design of this watch draws its inspiration from the deep anthracite and black of volcanic rock. Accents in blue, red, and silver represent the wealth of minerals contained in cooled lava. The power and splendor of nature transposed onto a dial. This worldtime watch with an automatic caliber is functional and sporty in equal measure. It presents all 24 time zones at a glance and has a 24-hour display for a second time zone. Volcano is limited to 175 pieces—an exclusive and very personal connection with the world.
Impression
Power for the world: With this automatic watch, you are always in the right place at the right time
Specifications
- Ref.
- 790.S1
- Case
-
stainless steel, tripartite
sapphire crystal glass back
screwed; screw-down crown
- Glass
- domed sapphire crystal with anti-reflective coating inside and out
- Winding
- automatic
- Dimensions
-
diameter
40.0 mm
height 9.9 mm
lug-to-lug 48.0 mm
- Water resistance
- 10 atm (suitable for swimming)
- Dial
-
dark gray, hour numerals and indexes with white Superluminova
with worldtime, 24-hour home time, and day and night displays
- Hands
- rhodium-plated, hour and minute hands with Superluminova inlay in white, 24-hour hand red
- Strap
-
Bracelet Club Sport, with quick-change spring bars
lug width mm
- Limited Edition Engraving
- Limited Edition – Volcano 1/175
Product safety
mechanical wristwatch
Article number: 790.S1
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 worldtime caliber with a globe in gold on the rotor is the third movement in the neomatik series from NOMOS Glashütte. It is only 4.8 millimeters in height—thanks to an innovative in-house design that integrates the complication into the gear train. Another new feature is the 24-hour second time display with a single hand. Worldtime rethought.
- Caliber
-
DUW 3202
automatic
- movement height
- 4.8 mm
- diameter
- 13 ¾ lines (31 mm)
- Power reserve
- up to 42 hours
- Jewels
- 37
Beautiful things

Outstanding materials
The links’ alternating fine satin and highly polished finish define the beautiful surface texture of the metal strap that harmoniously connects to the watch. The length of the Club Sport bracelet can be adjusted individually to every wrist.

Beautifully presented
A black case, made of fine leather, protects the watch during shipping and also fits easily in your luggage.