Eberhard & Co. Extra-Fort Oro Rosa 18 kt for $3,486 for sale from a Private Seller on Chrono24
Eberhard Pre Extra-Fort - TheWatchBoutique
Sold Price: Wristwatch: very well preserved 18K Eberhard 'Extra-Fort' oversize gold chronograph in the extremely rare version with 12-hour counter, No.36001, ca. 1960 - June 6, 0120 4:30 PM CEST