Favre-Leuba Bivouac 53223


Few self-proclaimed tool watches yield the kind of functionality on offer from this vintage Bivouac. Fewer still do so with such personality, coordinated design, and bizarre history. Unique to this watch, the outer dial scale is not a tachymeter or pulsations scale. It is a mechanical barometer/altimeter. The pressure drops, measured as mmHg, could be…

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