Pocket watch in 750 mils yellow gold with silver guilloché dial, Roman numerals and railway track. The yellow gold counter-cuvette is engraved with the words 'échappement duplex, axe, doigt et huit trous en pierre' (duplex escapement, shaft, finger and eight stone holes). Compensator and parachute. The guilloché back with radiating motif. First half of the 19th century. Gross weight 99.4 g D. 54 mm