Blancpain Fifty Fathoms Bathyscaphe Quantieme Complet Phases de Lune Steel Men's Watch - 5054 1110 71SCollection: Fifty Fathoms Case Material: Steel Case Diameter: 43 mm Case Thickness: 13. 3 mm Width Between Horns: 23 mm Bezel: Unidirectional sapphire bezel Dial: Dark Grey Strap: Satin brushed steel Winding: Automatic; Calibre 6654. P. 4 Power Reserve: 72 hours Water Resistance: 30 bar Complete Calendar. This practical complication indicates the date, day of the weeks and the month. The changing face of the moon reproduced on the dial adds a poetic