Vintage Stunning 1950's Bucherer Ladies Wrist Swiss Peak-A-Boo Watch from .800 Swiss Euro Silver and Marcasite Settings with Safety Chain This beautiful ladies wristwatch is in Excellent vintage condition. All the stones are intact, it winds and runs. It's extra nice 6.25 inches in length 3/4 inch diameter Silver Case Rare in this running condition shipping included The mineral marcasite, sometimes called white iron pyrite, is iron sulfide with orthorhombic crystal structure. It is physically and crystallographically distinct from pyrite, which is iron sulfide with cubic crystal structure