Watch had an interesting feature you can ajust the date in french or english, mine nos one comes with a leaflet explaining the functions. Nice size it has and pretty rare to obtain.
The rings can be ajusted so that you can measure high or low tide over a period of two weeks.
One of the sleepers in the portfolio ;-))
Cheers
Arno

: I was looking for informations related to the later Solunograph
: execution as found in the 1977 and 78 Heuer catalogues and must
: say I've been not able to find anything.
: Would anybody have any information about this particular watch
: including movement related ones ?

: Any help would be greatly appreciated.

: Thanks,

: Laurent