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1956 - Why Have Timekeeping Certificates? by L Defossez Swiss Magazine Article (Horology)
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"Why Have Timekeeping Certificates?" by L. Defossez - Original magazine article (magazine clipping) which was removed from a 1956 Swiss magazine.
Text in the article is in English.
The opening sentence of the article reads:
"There is hardly a watch business of repute which does not have amongst its stock several fine quality Swiss watches which have Timekeeping Certificates issued by an official timekeeping bureau of by a chronometric observatory."
Sections/headlines in the article include:
* With what object were certificates introduced?
* On the impossibility of observing watches under actual "wearing" conditions
* The scientific verification of the timekeeping of watches
* Definitions of certain terms
* What criteria should one choose to qualify a watch?
* The significance of the Swiss institutes certificate
* Calculations of a certificate for a simple pocket watch
* The training of a salesman
The magazine article was carefully removed from a Swiss magazine.
[Please note: this is a magazine article/magazine clipping only; no watch, clock, parts or tools are included.]
The article is 9 pages in length (on 5 sheets of paper).
As with most vintage magazine clippings, there is some yellowing to the paper due to age as well as light wear and small bends.
The magazine article was carefully removed directly from a Swiss magazine. It is not a copy or reproduction. The rest of the magazine is not included.
[Please note: this is a magazine article/magazine clipping only; no watch, clock, parts or tools are included.]
[inv. SO-9/10-56]
Text in the article is in English.
The opening sentence of the article reads:
"There is hardly a watch business of repute which does not have amongst its stock several fine quality Swiss watches which have Timekeeping Certificates issued by an official timekeeping bureau of by a chronometric observatory."
Sections/headlines in the article include:
* With what object were certificates introduced?
* On the impossibility of observing watches under actual "wearing" conditions
* The scientific verification of the timekeeping of watches
* Definitions of certain terms
* What criteria should one choose to qualify a watch?
* The significance of the Swiss institutes certificate
* Calculations of a certificate for a simple pocket watch
* The training of a salesman
The magazine article was carefully removed from a Swiss magazine.
[Please note: this is a magazine article/magazine clipping only; no watch, clock, parts or tools are included.]
The article is 9 pages in length (on 5 sheets of paper).
As with most vintage magazine clippings, there is some yellowing to the paper due to age as well as light wear and small bends.
The magazine article was carefully removed directly from a Swiss magazine. It is not a copy or reproduction. The rest of the magazine is not included.
[Please note: this is a magazine article/magazine clipping only; no watch, clock, parts or tools are included.]
[inv. SO-9/10-56]
