Set of two 18k yellow gold collar watches, one with a plain back, the second with a figured back. The dials are white enamelled, one with Roman numerals, the other with Arabic numerals, seconds counters at six o'clock (small impacts). Late 19th century. Diameter: 2.8 cm and 3 cm - Gross weight: 47.9 g An 18k pink gold collar watch, the white dial with Roman numerals for the hours and Arabic numerals for the minutes. Diameter: 2.4 cm - Gross weight: 16.2 g And a chain and two metal watch keys.