centre-seconds watch Museum number 1994,0611.9 | Producer name BIOG77056 Made by:Joseph Quoniam | Production date 1765-1775 | Production place Made in:Paris (France)
watch Museum number 1958,1201.1442 | Producer name BIOG66885 Made by:Joachim Castin | Production date 1790-1800 | Production place Made in:Paris (France)