U-Boat Classico 45 chronograph, stainless steel and leather, automatic movement, 45mm case, black dial.

A Classic Tungsten Chronograph is much more than a simple accessory; it is a work of art that blends the strength of metal with the elegance of design. Every detail tells a story of precision and resilience, imprinting a unique character on the one who wears it.

TECHNICAL DETAILS

MOVEMENT

Sellita SW 500 mechanical automatic chronograph, with technical modifications to U-BOAT specifications. Frequency 28,800 vibrations/hour, 4 Hz. Power reserve 62 hours. 25 jewels. Skeletonized rotor.

FUNCTIONS

hours, minutes, seconds, chronograph function, date, 24-hour indicator, crown cover.

CASE

AISI 316L steel. Polished tungsten bezel. Crown extraction lever at 8:30. 45 mm diameter.

CASE BACK

steel, closed with 7 screws. U-shaped opening with sapphire crystal movement view.

DIAL

three-level black metal. Indexes and numerals treated with beige superluminova. Metal hands painted with beige superluminova treatment. 24-hour hand in red.

CRYSTAL

high-quality sapphire with anti-reflective treatment.

WATER RESISTANCE

100 mt, 10 ATM.

STRAP

lasered leather aged with natural process, dark brown color. Handcrafted in Tuscany by skilled artisans, with a careful selection of leather and materials, and entirely made in Italy. Waxed cotton stitching. Width: 20/20 mm. Strap: ref. 9573/Z. Steel tongue buckle. Buckle: ref. 4879.