Patek Philippe Calatrava Collection18-Karat yellow gold timepiece. This 38mm watch is mechanical self-winding movement, date in an appeture, sweep seconds hand, sapphire crystal case back protected by a hinged dust cover, water resistant to 30 meter,silvery opaline dial, hand-guilloched center, applied gold hour markers. This high polished dial is displayed on a brown alligator strap.