Pictured here is a movement component in the Big Pilot 5011 Calibre - this wheel (the large, orange wheel near center) with the eccentric spiral on top. What does this component do? What function does it perform?
What is that Component?
- 5 replies
- last reply by rsheridan 26 Nov 2008
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MasterPower reserve indicator spring?
It looks like it is where the power reserve indicator sits so my guess it is a sort of spring that controls the power reserve's 7 day indicator? And by the looks of it it also keeps it in place.
Actually this is starting me guessing and now you have me want ing a book on movements to understand it better ;-)
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MasterWhat is that Component?
It appears to function as part of the advancement of the date ring. I'm not sure, however, if it is actually resposible for the "rapid-advance" function.
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ConnoisseurI also think is the rapid date shift(nt)
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MasterMe three...
I am wearing my 5001 today and took it apart to verify ;-)
No, seriously I did hold the watch in the position as pictured above and was looking at how it works. I guess the tension builds until the edge on the left of the center-part of the spring forces the outer triangle up, creating enough momentum to make the date shift.
Kind regards,
Clemens
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MasterYes - it's the date display mechanism...
As the 24-hour wheel (the large, gold wheel with the eccentric spiral on top) turns toward midnight - the large teeth at the outer, white date disc interface - to advance the date. You can see the "white" spring arm at lower-9'oclock in the image - that will ensure a "snap" and proper centered position of the new date in the date window on the dial.