IWC Schaffhausen R 1210 Caliber 401 Steel 1960 International... for $1,725 for sale from a Trusted Seller on Chrono24
IWC - Cal 401 Vintage Big case - Men - 1950-1959 - Catawiki
Iwc Schaffhausen K18Yg Cal.401 Vintage Redan Dial Automatic Mens 697813 Secondha | eBay
1960's Mint Condition International Watch Co. on Original Vintage IWC Strap and Buckle. IWC Collector's Piece. Top Quality Rare Caliber 401. Perfection. – Corr Vintage Watches