I recently acquired a complete original documentation set for a ref. 6542 at estate auction in Ontario, Canada - no watch, papers only - and I am trying to locate the watch if it still exists.
The details from the documents are as follows:
Case number: 427,354 Movement numbers: 727,499 / 830,670 Reference: 6542 Bureaux Suisses rate certificate dated: 12 November 1958, Le Sentier - stamped "Especially Good Results" Guarantee card dated: 13 May 1959, Manufacturer Geneva
The set is complete and internally consistent across all five documents. The case back date would be Q4 1958, consistent with other 427xxx serials in the census.


