Important Contemporary Collector\'s W...
Geneva, Hotel Bristol, May 20, 1997
International Watch Co., Schaffhausen, "Der Doppelchronograph", Ref. 3711-011.
Self-winding, waterproof to 50 meters, 18K yellow gold gentleman's wristwatch with round button splitsecond chronograph, registers, day and date. Diam. 42 mm.