Vintage Ball 999B Official RR Standard 16s 21 J GF Pocket Watch. The white enamel dial with black numbers, sub seconds at 6, outer minutes in black with matching blue steel hands is signed Ball offical standard Cleveland. The manual wind 21 jewel 16s 3/4 plate movement is working, fully signed Ball watch co 21 jewels, gains 20 sec a day. The large 10k gold filled 51.1mm case with screw back is in nice original condition, the case back case is signed Ball official standard keystone watch case j boss 10K gold filled, minor dint to centre of back. Dont miss this Ball pocket watch for your collection.