Vlk
52
How to identify?
Thank you for the answer, I read that discussion with much interest.
As regards the 2450 caliber, I guessed that it was not free sprung just because I didn't see screws or "weights" around the diameter of the balance, but wasn't sure. So I'd like to know how can I recognize a free sprung or a tradizoinal balance just looking at pictures of the escapement. Thank you.
Answers....
By: WHL : September 3rd, 2009-19:55
The balance in the 24XX series of movements is not free-sprung. Do you want to know the particular brand name of the micrometric screw regulator? Yes, the rotor is mounted on ceramic bearings. While many collectors here have stated their desire to see the...
How to identify?
By: Vlk : September 5th, 2009-05:30
Thank you for the answer, I read that discussion with much interest. As regards the 2450 caliber, I guessed that it was not free sprung just because I didn't see screws or "weights" around the diameter of the balance, but wasn't sure. So I'd like to know ...
Just the Opposite
By: Tick Talk : September 5th, 2009-07:18
A "free-sprung" balance does NOT have an adjustment mechanism on the balance wheel, aka, screw weights. The famous Patek patented Gyromax is a free-sprung balance. Examples are to be found with the free-sprung Vacheron caliber 1072/1 auto vs adjustable we...
We say the same thing...
By: Vlk : September 5th, 2009-08:09
...but I don't speak English well, so for "weights around the balance wheel" I meant these semi-circular screws you can find in the Gyromax system: or the screws used by Rolex in their Microstella system: I know that a ot of calibres with traditional bala...
Patience...
By: Tick Talk : September 5th, 2009-15:55
I can help now that I understand your question! A free-sprung balance does not have a central regulator pin and arm with it's "fast-slow" indicator. Carlos Perez has a great article on the free-sprung balance over at TZ.
Thanks Bill.
By: CaliforniaJed : September 13th, 2009-18:22
I think my problem is that I see so many movements with Swan's Neck Regulators that when I don't see it I falsely presume that the balance wheel is free sprung. Of course that's a regulating screw. I feel a little silly. Not that silly is always a bad thi...