Old world inspiration meets new world technology in this classy Calibre 8700 with alarm unlike any other. This two-toned stainless steel timepiece is loaded with features including dual time, 12/24-hour time and month/day/date and it is powered by any kind of light so you never need to change the battery. Featuring our Eco-Drive technology – powered by light, any light. Never needs a battery. Caliber number E870.