Broken balance. Winds up. Not running. The Trenton Pocket Watch Movement Size 18s Openface Antique Parts F8878 is a vintage timepiece movement made by the Trenton brand. This openface movement is designed for antique pocket watches and is compatible with other antique watch brands. With a size 18s specification, this movement is a valuable and sought-after part for watch enthusiasts and collectors looking to restore or repair antique pocket watches.
