A 20th century German two day marine chronometer signed Wempe, Hamburg, 5377, Type 05., with later case the 4' signed and numbered Arabic dial with power reserve 0-56 hours and subsidiary running seconds, the chain fusee movement with maintaining power, diamond endstone and cut and compensated bimetallic balance, the rear of the aluminium dial stamped 77, suspended in blackened gimbals in a later two-part custom made case with applied aluminium label and interior with later rating label for 1980, the case 19.5cms wide