Timewarp
227
my opinion
I tend to agree with what you say but in most cases the watch is worn in many positions, the tourbillon made inherently for pocket watches was to be placed in a single upright position for most of the time. I say a Zenith Christophe Colomb with a gyroscopic module that shifts with the movement of the hand would be apt for watches, as even the automatic gyroscopic module as on the JlC gyro tourbillon would have a certain amount of unnecessary amount of gravitational force acting on it when it is not in a synchronous position with the wearer's wrist.
Watch movements may not be fitted flat in the casing they may be at a slight angle therefore this also has to be taken into account with relation to the beating of the opposing springs.
The placement of the double hairspring and the tourbillon will have a slight effect as it depends on where and how the effect of gravity is affecting the module in relation to the wearer's wrist position, also gravity will affect the pallet fork and wheel module depending on the angle and placement of the same.
Thereby actually taking readings in 7 or 8 positions and then plotting on a graph and finally taking the mean reading will give a clearer picture.
(I tend to agree with Nick about the sagging part)
Not sure
By: nickd : October 6th, 2011-11:11
Excellent question. Here's my extremely imperfect understanding. All corrections more than welcome (Jonh, Suitbert, you know who you are ). The "center of gravity" displaces in a normal balance even when the balance is horizontal, and I'm assuming this is...
Still stumped
By: dennis.raul : October 8th, 2011-00:44
Interesting points. The Bayer guys say this about the gravitational 'sag' Apparently since the two hairsprings oscillate in two different directions simultaneously and asymmetrically the center of gravity is kept in the the center on average i assume some...
my opinion
By: Timewarp : October 7th, 2011-04:41
I tend to agree with what you say but in most cases the watch is worn in many positions, the tourbillon made inherently for pocket watches was to be placed in a single upright position for most of the time. I say a Zenith Christophe Colomb with a gyroscop...