The Fifty Fathoms collection embodies Blancpain's passion for the underwater world that was originally expressed in 1953 with the presentation of the first modern diver’s watch.
- Collection: Fifty Fathoms
- Reference #: 5901 5630 NANA
- Caliber: Automatic
- Power reserve: 100hrs
- Water Resistance: 30 bar
- Case: 41.3mm, Steel
- Dial: Black
- Strap: Nato, Fabric
