THIS IS A BEAUTIFUL GOLD PLATED 1884 WALTHAM PS BARTLETT RAILROAD WATCH........ IT IS A  15 JEWEL AND A  MODEL 1877.......... I WOUND IT AND IT RUNS FINE AND KEEPS GOOD TIME, IT HAS BEEN SETTING FOR A FEW YEARS AND COULD BE OILED...........THE GOLD CASE HAS A STUNNING TRAIN ENGIN AND CARS  HAND CHASED ON THE BACK OF THE CASE AND IT COMES WITH A NICE GOLD FILLED WATCH CHAIN........   IT IS A SIZE 18......     THE INSIDE OF THE CASE IS MARKED KEYSTONE , BASE METAL...........THE FACE DIAL IS IN GREAT CONDITION WITH NO FLAWS AND THE CRYSTAL IS GREAT ALSO.....THE SERIAL NUMBER ON THE MOVEMENT IS 2491569......     THE MOVEMENT IS ALSO MARKED PS BARTLETT, WALTHAM, MASS........    THIS WATCH IS IN GREAT RUNNING CONDITION......    PLEASE LOOK AT ALL PICS AND IF ANY QUESTIONS PLEASE ASK