Important Contemporary Collector\'s W...
Geneva, Hotel Bristol, May 20, 1997
International Watch Co., Schaffhausen, "Ingenieur " , Ref. 5215-001, the only pocket watch in the world to be waterproof to 30 meters, antishock and antimagnetic up to 40 000 a/m.
Manual winding, waterproof, stainless steel pocket watch, screwed back, sapphire crystal. Diam. 50 mm.