From the Essentials Collection Automatic with manual winding capability 21,600 vibrations per hour Power reserve: approximately 41 hours 23 jewels Blue sunray dial Date calendar Screwdown see-through caseback Case diameter: 41.2mm Stainless steel case and bracelet Tri-fold push button release clasp Water resistant to 10 bar, 100 meters (330 feet) Caliber 4R35
