The following text is from the Christie's catalogue: CHARMAN & CO. AN EXTREMELY FINE, RARE AND ATTRACTIVE 18K PINK GOLD, ENAMEL AND PEARL-SET OPENFACE DUPLEX WATCH, MADE FOR THE CHINESE MARKET SIGNED CHARMAN & CO., LONDON, NO. 9037, CASE BY LOUIS COMTESSE, STAMPED WITH LONDON DATE LETTER FOR...