The U-Boat SOMMERSO CERAMIC GREEN/MT BRACELET, reference 9520/MT, is a robust diving watch designed for underwater adventures. It features a 46 mm stainless steel AISI 316L case with a satin hand finish and a distinctive left-side crown protected by a patented device. The watch is powered by a Sellita SW 200 automatic mechanical movement, offering a 41-hour power reserve and operating at 28,800 vibrations per hour. The two-tone green and black dial comprises three superimposed layers, with brushed metal numerals and indices treated with white Superluminova for enhanced visibility. Functions include hours, minutes, seconds, date, and a 24-hour indicator. The unidirectional rotating bezel has a bicolor green and black ceramic insert with white Superluminova references. A high-quality sapphire crystal with anti-reflective treatment and a magnified date window protects the dial. Water-resistant up to 300 meters (30 ATM), the watch is fitted with a 316L stainless steel bracelet featuring polished central links, matte side links, and a deployant clasp with micro-adjustments for a comfortable fit.