The Story
U-Boat Sommerso/A Bracelet Ref. 9007/A/MT represents the classic professional dive watch envisioned by Italo Fontana, defined by bold proportions, functional design, and unmistakable Italian character.
Powered by a Swiss automatic mechanical movement customised to U-Boat specifications, this model operates at 28,800 vibrations per hour with a 41-hour power reserve. It delivers hours, minutes, seconds, date, and a 24-hour indicator, supported by a unidirectional rotating bezel and a secure screw-down crown.
The 46mm satin-finished stainless steel case is engineered for extreme performance, offering 300 metres of water resistance. Completed with a sapphire crystal featuring anti-reflective coating and date magnifier, and paired with a solid stainless steel bracelet with deployant clasp and micro-adjustment system, the Sommerso delivers professional dive capability with refined everyday comfort.
Questions & Answers
- Is the Sommerso suitable for professional diving? Yes, it offers 300 metres water resistance and a unidirectional rotating bezel.
- What movement powers this watch? It uses a Swiss automatic mechanical movement customised to U-Boat specifications.
- Does it include a 24-hour indicator? Yes, the watch features a dedicated 24-hour hand.
- What type of bracelet does it have? A stainless steel bracelet with screw-in links and a deployant clasp with micro-adjustments.
- Is the crown protected? Yes, it features a patented crown protection system on the left side.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
U-Boat Sommerso/A Bracelet Ref. 9007/A/MT represents the classic professional dive watch envisioned by Italo Fontana, defined by bold proportions, functional design, and unmistakable Italian character.
Powered by a Swiss automatic mechanical movement customised to U-Boat specifications, this model operates at 28,800 vibrations per hour with a 41-hour power reserve. It delivers hours, minutes, seconds, date, and a 24-hour indicator, supported by a unidirectional rotating bezel and a secure screw-down crown.
The 46mm satin-finished stainless steel case is engineered for extreme performance, offering 300 metres of water resistance. Completed with a sapphire crystal featuring anti-reflective coating and date magnifier, and paired with a solid stainless steel bracelet with deployant clasp and micro-adjustment system, the Sommerso delivers professional dive capability with refined everyday comfort.
Questions & Answers
- Is the Sommerso suitable for professional diving? Yes, it offers 300 metres water resistance and a unidirectional rotating bezel.
- What movement powers this watch? It uses a Swiss automatic mechanical movement customised to U-Boat specifications.
- Does it include a 24-hour indicator? Yes, the watch features a dedicated 24-hour hand.
- What type of bracelet does it have? A stainless steel bracelet with screw-in links and a deployant clasp with micro-adjustments.
- Is the crown protected? Yes, it features a patented crown protection system on the left side.






















