Very rare 18 世紀大八件 pocket . 清末famous （有喴 Juvet Swiss 鑽造）， dated around 1860s. All Original . 55 mm . Silver case . Works good ! Can run at least 1 day without issue and in 1 min range and that’s very good for over 100 years pocket. Pocket watch only
https://kknews.cc/zh-hk/fashion/xrreezg.html
https://macautimemuseum.com/pocketwatches/163