According to the serial this Waltham size 18s grade : P. Bartlett and dates to 1877. The dial and hands are good condition with minor hairlines. The crystal is glass and unblemished. The case looks original and is coin silver and about average condition. The crown works good. All the lids work good and the front on open nicely when the crown is pushed. It opens a little more that 90. The movement is 11 jewel, lever set. It runs good and keeps time. The diameter is 55mm.