A 20th Century Swiss lever deck chronometer by Ditisheim in a mahogany box. Keyless gilt bar movement with going barrel. Plain cock with polished steel micrometer regulator. Ditisheim patent compensation balance with auxiliary affixes, overcoil hairspring. Club foot lever escapement. Signed silvered dial with subsidiaries for power reserve and seconds, Roman numerals, blue steel hands. Three tier brass bound mahogany deck box, wound and set by a knurled button at the rear.