A 19th century Swiss spring detent pocket chronometer movement, the gilt, keywound and set bar movement with cut bimetallic balance and adjustable detent, roman numeral white enamel dial with plum colored Breguet style hands, now in a later nickel case, movement 39mm

movement complete, with good staff and detent, dial with a few faint hairlines, hands with minor rust, lacking seconds hand, case dirty and lacking crystal