that the Platinum Datograph weighed approximately 150 grams when fitted with strap and standard tang buckle. It's a hefty weight for a 39.5mm case, but feels quite nice and reassuring when on the wrist.
As an interesting aside, assuming USD $2000 per troy ounce of platinum, the scrap metal value of the Datograph is somewhere in the neighborhood of $9500 if you discount the weight of the movement, crystal and strap!
Regards,
Tom