CzapekWatchmaker
6
Similar but different;) This is...
Similar but different;)
This is an uncoupling yoke (M1165.31-1A.A)
This performs a similar function but instead of disconnecting the the rachet wheel from the hand winding mech, this disconnects the rotor from the auto mech.
This is because this calibre, like all modern PP movements, only wind in one direction (anti-clockwise), any movement that winds in both directions needs a reverser wheel or two. (Rolex, ETA, etc etc)
The problem with bidirectional winding is two fold. The auto tends to be thicker and the either one or two reverser wheels are quite complicated for their size and are prone to damage. The Rolex reverser wheels are, however, very good.
This uncoupling yoke is actually two bearings, the other bearing is friction fitted to the main plate. The two are connected by a thin metal plate. The visible toothed bearing has a post underneath which is pushed towards the rotor by a carefully adjusted spring, that's why it moves back into place when the rotor teeth push it away when he rotor turns clockwise.
Knowledge is power!
PPWatchmaker
Experts, please !! (5159 perpetual)
Dear all, I just see on my brand new 5159 that this circular piece is not "centered" in the circular hole. Is this a problem ? Thanks for your help !!!...
Not a problem
That piece works like a clutch (not sure of the correct horological term) that engages and disengages the winding rotor and manual winding. It is supposed to move; it would actually be a problem if it never moved! Try winding the watch manually, and you w...
Wig-wag pinion
This is a wig-wig pinion. A small pinion (toothed gear) is rivited to the underside. It will move inwards when you wind the watch by hand and will be pushed out of the way by the rachet wheel when the automatic mechanism is winding the watch. Try winding ...
I'm interested in more details...
I know from bitter experience that hand winding an ETA 2824 movement regularly will cause major problems with the reverser wheels jamming prematurely. I've had several of these movements and each one died in approx just under one year after hand winding d...
First off, hand winding automatic...
First off, hand winding automatic watches daily should not be done. Period. Hand winding any auto watch causes part or all of the auto to spin very fast in a way they are not designed for. I have often recommended against watch winders because they cause ...
THANK YOU !!!!!
and please post more here Reading your post and knowing your login name I'm sure we can learn a lot from you ! Thanks again
Wig-wag pinion
Very interesting, thank you! So this should be the Wig-wag pinion in my 5140 with 240Q movement, exposed so it is easier to see....
Similar but different;) This is...
Similar but different;) This is an uncoupling yoke (M1165.31-1A.A) This performs a similar function but instead of disconnecting the the rachet wheel from the hand winding mech, this disconnects the rotor from the auto mech. This is because this calibre, ...
Thanks for your very valuable input!
And I am looking forward to reading you more often, here. Best, Nicolas
Thanks for the insight! A few more questions..
Thanks for the insight! I wish manufacturers made it clear that daily winding could be a problem. I rotate my watches daily so my automatics do not have along enough power reserve between wearing occasions. I have been hand winding my calatrava for the la...
Great info and welcome. Glad you're here.
I was told by the Rolex tech guy that he usually tells people if your Rolex has been sitting on a desk for a day or two, to give the crown about 60 turns. When he first told me 60 turns, I thought that was too much but then he explained that most people u...