c1905. Conversion cubed. Pocket watch to wrist watch to pendant/necklace watch. Watch is running and keeping time over a 1 day period. I would still recommend a cleaning. Dial has some cracks. At some point in it's life it got a lug cut and filed down. Jump ring is still attached as part of its conversion to a necklace watch. Other than that it appears to be original. Selling for parts because of the dial and case, but technically you could use as a necklace watch if so desired.
 
Grade 320 movement. Size 0s 7 Jewels.