A mahogany cased marine two day chronometer, no. 3686, retailed by A.C. Bartlett, Auckland, New Zealand, circa 1880, 9.5 cm silvered dial with subsidiary seconds and up/down dials, fusee movement with maintaining power, Earnshaw's spring detent escapement with compensation balance and helical spring, the brass bowl gimbal-mounted in a brass bound three tier case with swing handles, case 19 cm square