Longines Symphonette Quartz Diamond Hour Markers Black Leather Watch# L2.306.4.57.0 (Women Watch). Band Color: Black. Dial Color: Black. Display Type: Analog. Item Shape: Oval Shape. Band Material: Leather. BandLength: Women Standard. Case Size Diameter: 21.9 x 34 millimetres. Case Material: Stainless Steel. Diamonds: Dial set with 13 Top Wesselton VS diamonds, for a total of 0.059 carats. Clasp Type: Buckle. Bezel Material: Stainless Steel. Bezel Function: Stationary. Crystal: Sapphire. Water Resistant Depth: 30 meters. Movement Type: Quartz. Model Number: L2.306.4.57.0 L2.306.4.57. L2.306.4.57 L2.306.4.5 L23064570.