Amazing antique watch band, i believe each end clasp is signed patented and then initials beginning with a “W”. I’m not sure what the brand is? Some of the metal has worn down in those areas. Bu lifting the tab on The buckle in the center you can adjust it to size, about 4.5 inches to 8 inches in length (that would not be included the watch face that would be attached. I have no idea what the metal is, it does not test for gold or silver. Needs to be cleaned (I try to avoid cleaning older items in case of damage) and some of the metal may need repairing. Over all it’s gorgeous and in great condition considering its age! Be sure to see photos for details