Core features of the Sommerso Collection:

• The crown is placed on the left-hand side and is fitted with U-Boat’s patented crown protection system.
• Each model is engraved with a unique serial number on the side of the case.
• The models feature a unidirectional bezel.
• An anti-reflective sapphire crystal with a lens over the date covers the dial.
• The watch is water-resistant up to 30 bars or 300 metres. 

Model Specifications: 9521/MT

• The stainless steel case is 46 mm in diameter.
• The gradient red to black dial features luminescent Arabic numerals and baton indices as well as an exposed ruby.
• A stainless steel bracelet guarantees comfort to the wearer.
• Functions on the model include hours, minutes, seconds, a date aperture and a screw-down crown. The model also features a 24-hour indicator.
• Movement type – Swiss automatic mechanical with a 38-hour power reserve, 25 jewels and a frequency of 28,800 A/h.