Longines Ladies PrimaLuna Automatic Watch # L8.111.4.87.6. Stainless steel case. Stainless steel bracelet. Swiss made self-winding automatic movement. White mother of pearl dial. Date calendar display at 3 o' clock position. Scratch-resistant sapphire crystal. Water resistant to 30 meters. Approximate case diameter: 26.5mm. Model Number: L8.111.4.87.6 L8.111.4.87 L8.111.4.8 L8.111.4 L8.111.