VINTAGE 64MM--VERY LARGE--ACROSS CENTER OF CASE. OPEN FACE WITH ORIGINAL ENAMEL PORCELAIN DIAL WITH ORIGINAL BLUED STEEL HANDS AND ORIGINAL GLASS CRYSTAL-- CHINESE BAT WING BALANCE WITH ENGLISH DUPLEX ESCAPEMENT WITH CHINESE ENGRAVED SYMBOLS ON MOVEMENT AND CENTER OF CASE BACK. AN ENGLISH DUPLEX ESCAPEMENT IS UNUSUAL FOR A CHINESE DUPLEX. THE MOVEMENT WILL RUN WITH SOME PRESSURE TO THE CENTER WHEEL BUT NEEDS CLEANING, FROM A COLLECTION OF CHINESE DUPLEX WATCHES. A FINE EXCELLENT MOVEMENT. A VERY FINE ALL ORIGINAL WATCH.COMES WITH A NEW KEY AND SHORT CHAIN.  SOLD AS SHOWN. THE PHOTOGRAPHS ARE THE DESCRIPTION OF CONDITION AND SOLD AS SHOWN AS A WATCH THAT WILL RUN FOR A SHORT TIME WITH SOME PRESSURE TO CENTER WHEEL AND NEEDING A CLEANING.