This is a limited edition Sinn U15 watch, featuring a seawater resistant German submarine steel case and a decommissioned U-15 submarine steel bezel.

• Case Material: German Submarine Steel
• Bezel Material: Decommissioned U 15 Submarine Steel, Tegimented Case
• Case Diameter: 41mm diameter

The Sinn U15 is a rare limited edition dive watch based on the U50 platform, featuring a SELITTA sw300 movement and measuring 41mm by 11mm in size. It's wonderfully thin and small, making it suitable for both everyday wear and formal occasions.

• Condition: Great Condition
• Limited edition quantity: 1000
• Depth rating: 500M
• Warranty: Sinn/Watchbuys Factory Warranty through 2027

This Sinn U15 is a unique dive watch made from decommissioned submarine steel, featuring a stunning sheen and a 3D bubble ocean laquered dial. It has a satinized steel case with a 500-meter water resistance and an automatic mechanical movement.

• Condition: Very good
• Case material: Decommissioned submarine steel
• Water resistance: 500m depth rating
• Diameter: 41mm diameter

This limited edition Sinn U15 is made from decommissioned German U-boat steel and features a unique dial inspired by the view from open water at 30 meters. The watch has a 41MM case, automatic Sellita cal SW300-1 movement, Sinn's H link quick adjust steel bracelet, and comes with an added Sinn black rubber strap.

• Condition: Mint, almost
• Material: Steel from decommissioned German U-boat
• Case size: 41MM diameter
• Movement: Automatic Sellita cal SW300-1

The Sinn U15 Limited Edition (2025) is a professional-grade dive watch produced in just 1,000 pieces worldwide. It's crafted in German Submarine Steel and features a 44mm case for bold wrist presence.

• Condition: lightly preowned, minor desk diving marks on clasp
• Case size: 44mm diameter
• Lug length: 47.5mm
• Thickness: 11.2mm