L. C. Grandjean Minute Repeater Split Second Chronograph 18k Vintage Pocket Watch - Manual winding. 18k yellow gold case with guilloche design on front and back, with script monogram in center of front case. Back of case opens to reveal a glass exposition back to view movement (55mm diameter). White porcelain dial with black Roman numeral; subseconds dial. A very rare, collectible, complicated and extremely high grade Swiss minute repeater with split second chronograph; ca. late 1800's - early 1900's.