Inspired By The Colours Of The Milky Way, The New Diver Starry Night Unveils A Dial As Captivating As It Is Glittering. To Create It, Ulysse Nardin's Artisans Superimposed Two Plates, One In Iridescent Mother-Of-Pearl And The Other In Blue Aventurine Glass.Caliber: UN-816 Case: Stainless Steel Glass: Sapphire Mechanism: Self WindingDimensions: Diameter 39mm Strap: Rubber