Sinn Watches - U1 S – the diving watch made of German Submarine Steel. The case and crown of the U1 S are made of high-strength seawater-resistant German Submarine Steel. As well
U1 S | U1 S – the diving watch made of German Submarine Steel. The case and crown of the U1 S are made of high-strength seawater-resistant German Submarine... | By Sinn
![SINN U1 S - 1000m Automatic Dive Watch - Submarine Tegimented Steel - Straps for a good Cause - YouTube SINN U1 S - 1000m Automatic Dive Watch - Submarine Tegimented Steel - Straps for a good Cause - YouTube](https://i.ytimg.com/vi/5nIHVQz2_lA/maxresdefault.jpg)