A. Lange & Söhne

Does anyone know how many ounces of platinum are in the case of a Datograph? I was holding a friend's Datograph, and was surprised how heavy it seemed. Of course, platinum is one of the heaviest metals around, but cases of other platinum watches don't see... 

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... 

Thanks for the information. At 150 grams, that's roughly 5 troy ounces (31.1 grams/troy ounce). Somewhere between 1 troy ounce and 1.5 troy ounces seems right for all the non-platinum parts, so that's roughly between 3.5 troy ounces and 4 troy ounces of p...