Fine Swiss 18K gold jumping quarter second split second chronograph with return to zero by
Emmison, Locke, circa 1875.
Fine white enamel dial with black markings and blued steel Breguet hands. Heavy case in
particularly fine condition with the crown and engine turning still sharp.
Gold dust cover in addition to glazed observation cover. Chronograph
buttons in the coin milled band. Fine nickel movement with approximately 23 jewels.
This watch can time two separate events. When one button is depressed the chronograph
starts. When the other button is depressed the chronograph hand splits and one of the
hands stops. The other hand continues until the first button is pushed. A final push
returns the hand to zero. This watch is actuate to 1/4 of a second, and when the
chronograph is running the subsidiary hand jumps very quickly making one revolution per
second. This makes it easier to tell the time to the correct fraction of a second. This
watch represents the final and highest development of the chronograph mechanism.