Concord Delirium Mariner

European Watch clock and Jewellery Fair 1982 BF 1410
Probably the thinnest water-resistant wristwatch ever made - and one of the most luxurious too: solid gold with a hand-engraved bezel whose decorative pattern echoes that of the torsaded bracelet. Waterresistant to 30 m. Quartz movement. (CONCORD Delirium Mariner)