Swiss WatchFair 1966 BF 3
Swiss watchmaking is devoted to continuous rescarch into waterproofing. Here is a self-winding model, with instantchange calendar, its case fitted with the “Compressor” system, capable of resisting 5 atmospheres of pressure for 10 minutes. Dial with “sun-brushed” finish, raised hour markers set with artificial onyx. Case in golde-plate or steel. (AERO-MATIC)