Quite possibly my best find here and by far the most gold I have ever found. This was believed to be GF? I have no idea and am not complaining because it was $40. It is all original and runs but the movement is in for a service currently. With the movement out the case weighs 44 grams deducting some grams for the extra pieces inside of it I believe i have 40 grams of 14k. Made in 1920 and is caliber 386, size 16s, double cased hunter. The case maker is Brooklyn Watch Case Co. Such a shame so many of these have been scrapped throughout time!