U-Boat Sommerso SS Ceramic Bordeaux Dial Green Bezel Watch

The Ultimate Professional Diver with Integrated Stainless Steel Bracelet Handcrafted in Lucca, Tuscany, the U-Boat Sommerso 46mm Bracelet (Ref. 9520 / 9520/MT) merges heavy-duty deep-sea diving architecture with an integrated, solid-link AISI 316L stainless steel bracelet. Engineered to meet professional sub-aquatic standards with 300 meters (30 ATM) of water resistance, the robust 46mm satin-finished case features a ceramic unidirectional rotating bezel calibrated for elapsed dive times. The multi-layered black dial is equipped with an additional 24-hour sub-dial indicator at 4 o'clock, bold Super-LumiNova markers, and a distinct date aperture at 9 o'clock. Protected by U-Boat’s patented left-hand screw-down crown-guard system, the Sommerso 9520/MT delivers uncompromising underwater performance and commanding wrist presence.

Technical Specifications:

• Reference / SKU: 9520/MT (9520)

• Writing Mode / Category: Horology / Automatic Professional Diver Watch

• Movement: Swiss automatic mechanical movement; 28,800 vph (4 Hz), 26 jewels, personalized skeletonized oscillating rotor

• Power Reserve: 44 hours

• Functions: Hours, minutes, sweeping central seconds, 24-hour sub-dial indicator at 4 o'clock, date aperture at 9 o'clock

• Bezel: Unidirectional rotating dive bezel with black ceramic insert, 60-minute graduation scale, and luminescent 12 o'clock dot

• Case Diameter: 46.0 mm (approx. 51.0 mm including the left-hand crown-protection mechanism)

• Case Material: AISI 316L stainless steel, satin-brushed with polished chamfers

• Dial: Double-layer black dial with cut-out numerals and indices infilled with high-intensity blue/beige Super-LumiNova

• Crystal: Scratch-resistant, high-grade sapphire crystal with anti-reflective coating

• Crown & Protection: Patented left-hand screw-down crown-protection cap system at 9 o'clock with secondary security ring

• Caseback: Solid screw-down AISI 316L stainless steel caseback with deep-engraved Sommerso series motifs and individualized serial numbers

• Water Resistance: 300 meters / 30 ATM / 1,000 feet

• Bracelet & Clasp: Solid-link AISI 316L stainless steel bracelet with satin-brushed finish and deployant folding clasp with micro-adjustment

• Origin: Handcrafted in Lucca, Tuscany, Italy

• Packaging: Deluxe handcrafted U-Boat presentation box with official warranty booklet and serialized provenance

Authorized Canadian Representation:

• ✓ 100% Official Canadian Distributor Stock

• ✓ Official 2-Year International Manufacturer Warranty Included

• ✓ Complete Serialized Provenance & Handcrafted Factory Presentation Box

• ✓ Direct Domestic Insured Courier Dispatch