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Under the dial of a wind indicator "Click" to Login or Register 
Picture of Francesco Marco Maraschin
posted
Hi Guys

I am just a bit curious about how a wind indicator on an American pocket watch works, there is not much info I can find about the subject, any info would be appreciated Big Grin.

Best Regards
Francesco
 
Posts: 226 | Location: Johannesburg, South Africa | Registered: November 19, 2012
IHC Life Member
Picture of David Abbe
posted
The Wind indicator mechanisms of Elgin Wind Indicator watches are well detailed in their 1915 parts catalog. The Waltham is similar in function but quite different in execution. In both cases, they use a very clever means using planetary mounted pinions to display "Up" to "Down" wind variations due to the independent action of the Crown wheel and the down winding motion of the motor wheel/barrel. The 18s Elgin 18s diagram is below . . .

 
Posts: 6492 | Location: Southern California in the USA | Registered: July 19, 2007
IHC Life Member
Picture of David Abbe
posted
and the Elgin 16s W.I. is illustrated below.

 
Posts: 6492 | Location: Southern California in the USA | Registered: July 19, 2007
Picture of Francesco Marco Maraschin
posted
Thanks David
 
Posts: 226 | Location: Johannesburg, South Africa | Registered: November 19, 2012
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