A Silver Open Face Chronograph Pocket Watch

A silver open face chronograph pocket watch import hallmark for London 1923 with sponsor's mark G.S. for George Stockwell. White dial with black Roman numerals and two subsidiary dials. Top dial calibrated to 30  and the lower dial to 60.  All hands coloured blue. Outer dial segment calibrated for split-second. Movement number 203721. Small dents to side. Dial perfect.