girard-perregaux: constant escapement
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The elements that are shown in blue are made of silicon, including the S-shaped blade spring. Historically constant force escapements (according to George Daniels, "Watchmaking") had impulse springs made of plain steel, so they'd vary in power as the external temp changed --which defeats the entire purpose of a CFE.
jackjforster1 10 months ago
This is a "constant force" escapement. The idea is to deliver the same energy to the balance through the entire power reserve of the watch. True CFEs are very rare (even more so than the remontoire which is intended to do the same thing.) Impulse is delivered by the snapping back and forth of the s shaped blade spring, which is armed by the two escape wheels.
jackjforster1 10 months ago
i'd love to see this sped up and smoother. it's actually harder to follow the action cause it's so choppy.
Everfalling 1 year ago
@Dystopiologist Among the 16 size, the 1888 Riversides. 18 size, the 1883, Appleton and Tracy's...
Waltham1892 1 year ago
@Waltham1892 Well, it's just a simulation and not a production watch, so that's saying something.
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By the way, what's your favorite Waltham?
Dystopiologist 1 year ago
@Dystopiologist My guess would be the wire is either a flat spring or memory wire. Hell, could be dried pasta for all I know.
I'm an antique pocket watch kind of guy. If its more complex than a swiss anchor or an english level, I'm in the weeds. And brother, I'm in the tall weeds on this one.
Waltham1892 1 year ago
@Waltham1892,
.
George Daniels created a "double wheel" escapement some time back that superficially looked alot like this; he used it to run two gear trains off the same balance. His watch kept "solar" time and "star" time, i.e., time as it would be viewed from space. Yet this watch looks as if it is run of one train...
.
But this escapement truly is strange - is that a thin wire-thing that runs through the yellow locking mustache-piece?
Dystopiologist 1 year ago
@Waltham1892 ah, well in which case we'd have to await answer from someone with a little more mechanical knowledge than ourselves I guess XD
NiteReepa 1 year ago
@NiteReepa I see your point, and I don't disagree, but I was wondering if there was some practical advantage to this type of escapement...
Waltham1892 1 year ago
@Waltham1892 where is the practical benefit in music, art, recreation? yet, without such activities, what is there to live for?
NiteReepa 1 year ago