Ca. Ø50mm, ca. 107g, 18K gold à-goutte case,pletely signed and numbered, dated January 1st 1890, extremely rare calibre, Ankerchronometer, especially large chronometer balance, wolf's toothing, chronograph with central minute counter, perfectly preserved enamel dial, gold hands, intact and in very good condition, cleaning rmended. Chronometers of this quality with chronograph and central counter are extremely rare and wanted collectors' watches!