U-Boat Classico GMT

U-BOAT is known for their large divers. Too even make them stand out more they are looking for ways to make unusual materials a part of their watches. The new Classico GMT with a thin layer  of Anatolite under the sapphire glass, the appearance of the watch is changing.

Italo Fontana, creator of U-BOAT understands perfectly the meaning of innovation. Always passioned about advanced and unusual techniques and materials, Italo decided to apply, under the thick and scratch-proof sapphire glass of the new Classico GMT, a thin layer of Anatolite, the most effective existing color-change gem.

Unique and rare, this 30ct special stone acquires different colors when viewed under different lights. The ability to change a variety of colors under different light sources allows the dial of the watch to change from amber yellow to green and vice versa.

The wearer will be amazed to see the extreme color change of the watch passing from warm to cold lights, and the other way around.

8051o 8051


The 45mm diameter stainless steel case with satin finish, representing Italo’s idea of the pure, timeless design, features hours, minutes, small seconds, date and GMT functions through the U-2893 personalized movement.


Furthermore the Bezel ring is in polished tungsten, the strongest of natural metals and often used in electrical and military applications, where even a small amount can significantly increase the strength of an alloy and making it unbreakable.

Nestled between U-BOAT’s iconic left hand crown and its crown guard, is an innovative and patented pusher that can be depressed to eject the inner-crown from its recessed position enabling ease of adjustment for both the date and time.


The Classico GMT

Technical Specifications

Movement U-2893 GMT automatic mechanical, personalized to U-BOAT specifications
with date display and stem position at 9 o’clock;
Second time zone.
Frequency: 28,800 vibrations per hour, 4 Hz.
Power reserve: 48 hours.
25 jewels.
Dial Beige with black hands and markers. Red time-zones hand.
Case AISI 316L stainless steel with satin finish
Distinctive crown on left side with patented protection device.
Diameter 45 mm.
Polished tungsten bezel.
Functions Hours, minutes, seconds, hand for time-zones mechanism, date.
Back Sealed with seven external screws, fumé sapphire crystal reveals the movement.
Crystal High quality sapphire, scratchproof. A layer of Anatolite gem changes colours under different light sources allowing the dial of the watch to change from amber yellow to green and vice versa.
Strap Handmade from hand-finished dark brown calf leather. Stainless steel tongue buckle. Width: 20/20 mm

U-Boat Watches