Sinn U15 Submarine Steel Automatic Diving Watch
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Sinn U15 Limited Edition Diving Watch
Crafted from the outer hull of the historic German submarine U15, this limited-edition diving watch embodies true maritime heritage. Commissioned in 1974, U15 travelled an extraordinary 200,045 nautical miles, equivalent to ten circumnavigations of the globe, before its steel was repurposed into just 1,000 exclusive timepieces.
Forged from authentic, seawater-resistant submarine steel, each watch carries the legacy of decades at sea, expertly refined by SUG Glashütte to meet Sinn’s exacting standards while preserving its unique character. An engraved piece of the original submarine steel is also included, deepening its historical connection.
The high-gloss dial captures the shifting hues of the ocean, with deep blue-green tones and subtle bubble motifs creating a striking three-dimensional effect. Anti-reflective sapphire crystal ensures exceptional clarity, while engraved details reference the submarine’s journey and designation.
Tested to European diving equipment standards and certified for reliability, the U15 is more than a tool watch, it’s a piece of naval history on your wrist.
Why This Watch
- 1,000 Piece Limited Edition
- Real Submarine Steel Case - A Piece of History on Your Wrist
- 500m Water Resistance
- Bezel Features TEGIMENT Technology - Improved Scratch Resistance
- Reliable Swiss Made Movement
About Sinn
Sinn Spezialuhren is a German watch brand known for engineering-driven tool watches built for extreme conditions. Founded in 1961 by pilot Helmut Sinn, the company originally supplied aviation timepieces and has since expanded into diving and professional instruments.
Based in Frankfurt, Sinn develops innovative technologies such as submarine steel cases, tegimented hardening, and Ar-Dehumidifying Technology to enhance durability and reliability. Its watches prioritise legibility, precision, and function over decoration earning a strong reputation among professionals and enthusiasts for producing robust, dependable timepieces designed for real-world performance.
You can learn more about Sinn on our online magazine.
| Strap Material Colour | Sinn U15 |
|---|---|
| Watch Bezel | TEGIMENT Technology |
| Watch Case Finish | Satinised |
| Watch Case Material | Submarine Stainless-Steel |
| Watch Case Crown | Screw-Down |
| Watch Diameter | 41mm |
| Watch Functions | Date |
| Watch Glass | Sapphire with AR coating |
| Watch Lug Width | 20mm |
| Watch Movement | Sellita SW300 (Swiss) |
| Watch Movement Type | Automatic |
| Watch Power Reserve | 42 Hours |
| Watch Style | Dive |
| Watch Warranty | 2 Year Warranty |

Why Choose a Sinn U15 Submarine Steel Automatic Diving Watch ?

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