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 Mother-of-Pearl S Limited Edition (300 Pieces) Black H Link 1010.0242 - First Class Watches™ HKG Sinn U1 S Mother-of-Pearl S Limited Edition (300 Pieces) Black H Link 1010.0242 - First Class Watches™ HKG](https://en-hk.firstclasswatches.com/thumbnails/images/products/product113364-8477_cropped.jpg.thumb_FFFCFA_694x1000.jpg)