U-BOAT Sommerso Bronze

The new bronze version of U-BOAT’s professional dive watch, Sommerso, reflects the brand founder’s passion for diving as well as his enduring fervor for the ancient metal alloy.

Bronze is the first metal alloy that humankind learned to manipulate. Its history dates back to ancient times. It had been widely used in the maritime construction before the introduction of modern alloys.

Italo Fontana’s passion for diving gathered in this watch, designed to withstand the rigorous demands of professional diving in the first place, done the rest providing Sommerso with all the benefits coming from this metal inherently tied to maritime settings.

U-BOAT Sommerso Bronze automatic diving watch with 46mm case

Highly resistant to seawater and to corrosion, harder than stainless steel and iron combined, often used in the arms industries, creating a patina, unique to each timepiece, evolving in different colors; these are just few of the characteristics intriguing Italo since ever.

This new creation is a nod to antique diving equipment worn by the earliest nautical divers. The natural oxidation of the material of the 46mm case creates a naturally aged look, often a unique one, extremely desirable by its wearer. Necessary for every pro-dive watch, it features a rotating unidirectional bezel with calibrated markers every five minutes interspersed with numbers every ten minutes from 10 to 50.

U-BOAT Sommerso Bronze automatic diving watch with 46mm case

On its left side is the characteristic U-BOAT crown with a patented protective device. A Sapphire crystal with anti-reflective coating protects the watch dial which is composed of three superimposed layers with the upper one in black with luminous beige hands and markers plus an additional counter for the 24 hours of the day and the date placed on the opposite side.

U-BOAT Sommerso Bronze automatic diving watch with 46mm case

Each Sommerso dive watch houses a Swiss automatic mechanical movement, personalized to U-BOAT specifications featuring date, hours, minutes, seconds plus the 24 hours indicator.

Water resistant to 300 meters, the watch is paired with a dark brown handmade and hand finished calf leather strap with a bronze buckle subdued to a special anti-corrosion treatment.

U-BOAT Sommerso Bronze automatic diving watch with 46mm case

Technical details

Model: Sommerso Bronze

Swiss automatic mechanical, personalized to U-BOAT specifications
Frequency: 28,800 vibrations per hour
Power reserve: 44 hours
26 jewels
Skeletonized rotor

Date, hours, minutes, seconds, 24h indicator, graduated uni-directional bezel, screw down crown

Bronze, naturally aged, distinguishing crown on the left side, with a patented protective device
Serial number plate fixed on the left side of the case
Diameter: 46 mm
Crystal: sapphire crystal with anti-reflective coating
Case back: screwed, in bronze with special antiqued anti-corrosion treatment.
Water resistance: 300 meters, 30 ATM

Three superimposed dials, the upper one in black with visible ruby
Luminous beige hands, numbers and markers, treated with superluminova
Red 24h indicator hand

Handmade and hand finished calf leather, dark brown
Tongue buckle in bronze with special antiqued anti-corrosion treatment
Width: 22/20 mm.
Strap: ref. 8554/Z Buckle: ref. 8590