Review: Rare watches, The Collector's View: The IWC Ingieneur Ref. 3508 -
Ingenieur | Ref 3521 | Stainless Steel | Buy rare IWC watch – A COLLECTED MAN
IWC | REFERENCE 3521-002 INGENIEUR A STAINLESS STEEL AUTOMATIC WRISTWATCH WITH DATE AND BRACELET, CIRCA 1995 | Watches | 2020 | Sotheby's
IWC] Ingenieur ref. 3521. A Gérald Genta classic! : r/Watches
HODINKEE reviews the vintage ref. 3521 Ingenieur SL from IWC
IWC Ingenieur Ref.3521 Cal.887 JLC movement for $6,506 for sale from a Seller on Chrono24
3521 IWC Ingenieur | The Hairspring
IWC | REFERENCE 3521-002 INGENIEUR A STAINLESS STEEL AUTOMATIC WRISTWATCH WITH DATE AND BRACELET, CIRCA 1995 | Watches | 2020 | Sotheby's
IWC REF. 3521 INGENIEUR PLATINUM ROTOR STEEL International Watch Co., Schaffhausen, "Ingenieur", Officially Certified Chronometer, Automatic, case No. 2603832, Ref. 3521. Made in the 1990s. Fine, tonneau-shaped, center seconds, self-winding, water ...