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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