Watch Data Observatory Chronometer no. 25051 Case: Dial: Movement: 19''', blued steel balance spring Provenance: 1899 - Haas Neveux, Geneva 1899 - Observatoire de Geneve 189.0 points 1900 - Observatoire de Geneve 193.9 points 1901 - Observatoire de Geneve 223.7 points, adjusted by Charles Batifolier