One of those Chronographs I would love to add in my collection, for its split ( and foudroyante ) second, for its movement based on a 7750 totally reworked by Jaquet Baume, and for its aesthetics.
A drawing of the movement:
Platinum ( our dear Sandgroper's one ) :
Our dear Madruid's one, in yellow gold with a stunning black dial and no lume on the hands:
The sporty version in titanium ( Credit picture unknown ) :
And in white gold ( Credit: Christies )
A bit thick ( around 15 mm if my memory serves me well ) but not that big ( 40 mm ) , these 9020 were issued in 1999.
Yes, truly sleeping marvels.