240 Marine Chronometer Typ B, Marke ALS - A. Lange & Söhne, Glashütte

Marine chronometer with converted movement from an observation pocket watch. 1/5 second beat, lever escapement, with up-and-down indicator (power reserve indicator), running time 56 hours, rate deviation 1 second per day. Bakelite case, fully gimballed suspension in wooden box.

Movement and dial original. Wooden box manufactured later.

With certificate from A. Lange & Söhne dated May 20, 2017.

Very fine and rare example.

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