Description J W Benson London -a silver open face pocket watch. J W Benson London -a silver open face pocket watch, the white enamel dial having a Roman numeral chapter ring and subsidiary seconds dial in an engine turned outer case with central vacant cartouche and plain inner case, hallmarked Chester 1857, makers mark RS , key wind movement number 16146, of 62&64 Ludgate Hill London, diameter of dial 45mm, case 50mm, no personal monograms or inscriptions, watch is running at present time although no guarantee is give, watch is sold with a key.