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On-Hand: U-Boat Classico Sommerso Bronze Ceramic Review

On-Hand: U-Boat Classico Sommerso Bronze Ceramic Review

Discover the timeless allure of the U-Boat Sommerso Bronze watch, blending rugged durability with sophisticated design. Explore here!
May 09, 2024

The U-Boat Sommerso Bronze watch is an exquisite timepiece that combines the brand’s iconic design with exceptional craftsmanship. Inspired by the world of submarines, this watch delivers a unique blend of rugged durability and sophisticated style.

With its rich history rooted in Italian watchmaking, U-Boat has gained recognition for its distinctive designs and exceptional quality. Not to mention that every U-Boat watch is handcrafted by Italian watchmakers. The Sommerso Bronze stands as a testament to U-Boat’s commitment to excellence and innovation.

The U-Boat Sommerso Bronzo Ceramic BZ Ref. 8646/C is the latest offering with its unique bronze case and its latest ceramic bezel. This U-Boat Sommerso review aims to delve into the features, craftsmanship, and performance of this remarkable watch. 

Let’s explore the remarkable characteristics that make the U-Boat Sommerso Bronze a coveted timepiece among watch enthusiasts and connoisseurs.

What You Get in the Robust U-Boat Sommerso Bronze

When you purchase the U-Boat Sommerso Bronze watch, you acquire a timepiece that offers several benefits and unique experiences:

The bold and rugged design of U-Boat Sommerso Bronze creates a captivating appearance on the wrist
The bold and rugged design of U-Boat Sommerso Bronze that creates a captivating appearance on the wrist

Exceptional Craftsmanship

U-Boat watches are renowned for their exceptional craftsmanship and attention to detail, especially considering that it is individually handcrafted. The Sommerso Bronze is no exception, with its meticulous construction and use of high-quality materials. 

From the robust bronze case to the reliable Swiss automatic movement, every aspect of the watch reflects the brand’s commitment to excellence.

Striking Design

The Sommerso Bronze watch boasts a distinctive design inspired by submarines. The combination of the bold bronze case, luminescent hour markers, and large hands create a visually appealing and easily legible dial. 

Visually appealing and legible dial
Visually appealing and legible dial

The aging process of the bronze case, which develops a unique patina over time, adds a touch of individuality and character to each watch.

Personalized Aging Process

The aging process of the bronze case is a unique feature of the U-Boat Sommerso Bronze watch. Over time, the watch develops a distinct patina that reflects its journey and the experiences of its wearer. 

This natural aging process adds a personal touch and makes each watch truly one-of-a-kind. That further enhances the fact that a watch tells a lot about the wearer.


Despite its rugged appearance, the U-Boat Sommerso Bronze watch offers versatility in terms of style. It effortlessly transitions from casual to formal occasions, making it suitable for a wide range of settings. 

Whether you’re dressed in casual attire or attending a formal event, the Sommerso Bronze adds a touch of elegance and sophistication to your ensemble.

Investment Value

U-Boat watches are known for their durability and timeless appeal. As a result, the Sommerso Bronze has the potential to hold its value and even appreciate over time.

Investing in a U-Boat timepiece ensures that you have a reliable and coveted impressive watch in your collection.

Purchasing the U-Boat Sommerso Bronze watch grants you access to various benefits from exceptional craftsmanship to investment value

Read also: A Guide to Different Watch Materials: What I See in Them

A Closer Look: U-Boat Sommerso Bronze Review

The U-Boat Sommerso Bronze watch deserves a closer examination to truly appreciate its distinctive features and remarkable craftsmanship. Let’s delve deeper into its key aspects:

Bronze Case and Bezel

The robust 46mm case of the Sommerso Bronze is crafted from bronze, a material known for its strength and durability. The choice of bronze not only ensures the watch’s resilience but also contributes to its unique aging process. 

Over time, the case develops a natural patina, making each watch a testament to its wearer’s individual journey and experiences.

Bronze case and bezel of U-Boat Sommerso Bronze
Bronze case and bezel of U-Boat Sommerso Bronze

The all-new brown ceramic 120-click uni-directional diving bezel seamlessly complements the bronze case while offering superior scratch-resistant properties. The bold and strong look is further enhanced by the thickness of the watch measured 16.5mm and 51mm lug-to-lug distance.

The next appeal about the case is the trademark-protected special protective device at 3 o’clock. You might have been waiting for an explanation of this feature. The shape took inspiration from the old-school canteen bottle cap.

This protective cap serves as protection for the screw-down crown and prevents water from entering the inside parts of the watch. Moreover, the watch offers water resistance for up to 200 m, ready to accompany your next diving.

Read also: 4 Oris Bronze Watches for a Taste of Elegance and Vintage

Striking and Bold Dial 

The dial of the Sommerso Bronze watch is a masterpiece of design. The black background provides a captivating backdrop for the bold Arabic numerals and luminescent hour markers. Protecting the dial is a high-quality scratch-resistant flat sapphire crystal with an anti-reflective coating underneath.

The striking and bold dial of U-Boat Sommerso Bronze
The striking and bold dial of U-Boat Sommerso Bronze

The oversized hands and indices not only enhance readability but also add a touch of modernity to the overall aesthetic. It is a typical U-Boat style, initially found on the Classico model. To add practicality to the timepiece, the dial features a date window and a sub-dial.

The date window is conveniently positioned at the 9 o’clock mark while the unique 24-hour sub-dial balance off on the right. Topping it off, U-Boat adds a visible ruby sitting at 6 o’clock as a signature and the watch title at the top side. 

Overall, the watch highly considers legibility as the priority as every element on the dial is presented for better viewing. Moreover, the color also makes a great contrast against the black dial. 

Movement and Caseback

This is where the submarine design inspiration is applied to. The caseback design takes inspiration from one of the watertight hatch found in submarines. Further,  a quirky naval mine is engraved in the center, resulting in a displaying the full identity of the bronze dive watch.

Swiss Made automatic movement that beats at 28800 BPH (4 Hertz) with 26 jewels
Swiss Made automatic movement that beats at 28800 BPH (4 Hertz) with 26 jewels

At the heart of the watch is a Swiss Made automatic movement that is personalized to U-Boat. The result is a 24-hours sub-dial display at 4 o’clock that runs smoothly. The movement is renowned for its precision, ensuring accurate timekeeping and allowing the watch to operate smoothly with minimal intervention.

With 44 hours of power reserve, the movement beats at 28800 BPH (4 Hertz) with 26 jewels. As for the time and date adjustment, the wearer can turn the “destro” crown at the left side of the case, protected by the U-Boat’s unique canteen cap.


Pairing the watch is a 22mm vintage-themed brown leather strap with Maison’s logo. The watch features a hand-finished calf leather strap that not only complements the overall design but also ensures a comfortable fit on the wrist. 

Strapping the watch on is through a bronze tang buckle with a special antiqued anti-corrosion treatment.

A 22m hand-finished brown calf leather strap
A 22m hand-finished calf leather strap


The U-Boat Sommerso Bronze watch exemplifies the brand’s commitment to superior craftsmanship, innovative design, and exceptional performance. In terms of functionality, the U-Boat Sommerso Bronze excels both on land and underwater. 

Its robust construction, reinforced by a water resistance rating of 300 meters, ensures that it can accompany you on your diving expeditions without compromising performance or style. 

Whether you’re exploring the depths of the ocean or making a bold fashion statement, the U-Boat Sommerso Bronze is a companion that exudes both style and substance.

Read also: 5 Best Vintage Reissue Watches for an Appealing Classic

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