The Amida 710, which was probably launched in the early 1970ies, is a modern
decorated movement with a completely frosted finish, which could have been launched
in the 1980 as well.
Its construction is like on Roskopf movements: On the movement side, there's no
direct connection to the hands works, which is here driven from the mainspring barrel.
The three-leg (modern shape) ring balance is beared in two Incabloc shock protection
systems and beats slowly with 18000 A/h.
The hairspring is connected to a moveable stud and can be regulated in its effective
length on the hairspring key only.
main plate
The construction of this pillar movement is remarkable, since
it's only one-storied, which results in a very flat (only 3.8mm in height)
building, being perfectly suitable for elegant waches.
Even a center second indication would be possible - on the plates, there are already
the preparations for the bushings - on the movement side, there's even a jewel, which
is currently unused.
dial side view
On the dial side, which looks like being made by a robot, you see the
yoke winding system.
Unlike true Roskopf movements, the Amida 710 is a bit special: The hands are not directly
driven by the mainspring barrel, but the mainspring barrel drives the changing wheel,
which consists of two concentric gears with a friction coupling. The lower wheel
is connected with the mainspring barrel, the upper wheel with the cannon pinion and
the hour wheel.
Technical data
Manufacturer
Amida
Caliber
710
Number of jewels
17
Escapement
Anchor with pallets
Balance
Nickel
Shock protection(s)
Incabloc
Balance cock direction
counterclockwise
Hairspring stud
moveable
Regulator type
Hairspring key
Movement construction
Fork Escapement wheel, Fourth wheel, Third wheel, Large driving wheel, Mainspring barrel
Construction type
pillar construction
Bridge shape
full plate including esc.wheel, 5 gears
Winding mechanism
yoke
Setting lever spring
3 holes
Functions
Hour, minute
Beats per hour
18000
Size
101/2''' (measured: 23,75 mm)
Image in Flume Werksucher
K3 30
Factsheet
Test Results
The movement came in fair condition into the laboratory, but
was nevertheless cleaned and oiled.
Timegrapher Protocol
On the timegrapher, the Amida 710 showed good results, only in the
positions "3 up" and "9 up" the negative deviations were a little large,
but altogether, for a rather simple made movement, the results are
really ok.
