Tudor Chronograph, serial number 917,XXX and model 94200, so called Tudor Big Block. Manufactured in 1979. Scratches and marks to case and some delamination spotting to the bezel insert. Runs, chronograph functions, date quick-sets, keeps time. not checked for accuracy. Bracelet is an authentic Rolex 6251H big logo 1969 Jubilee that fits the watch but was not originally for it.