The 38mm Chronograph used by Jacques Cousteau and his crew on the Calypso back in the sixties, coming with it´s characteristic little propeller-second-hand and one of the biggest contrasting subdials of all vintagewatches. This early piece here is authentic in every single part. Tropical dial and hands appear with original lume and an overwhelming greygolden patina that brings an awesome individual look to that watch. Crown and the Valjoux 23 movementbridge as well are Aquastar signed. Besides that, the case and caseback have never been polished yet. This watch will come on a grey Natostrap and in addition a black leather racingstrap.