span aria label Marine chronometer by 10 years ago 14 seconds 4 846 views Marine chronometer span
Hamilton model 21 marine chronometer clock the time wizard clock repair & sales. The clock has sat unused for some time but runs well. Outer case measures 10.5 x 13 x 9.5 inches tall. This is referred to as the size 85 and it was the main high precision chronometer clock on board the ships.