The example below is based on an UT6497 caliber, the form of the movement is altered to a shape and skeletonized tourneau. The vibrations per hour of the balance is 18000,
which associates with early calibers predominantly pre-1950’s.
Movement bridge side
Dial side
Movement bridge side
Upper crown wheel
Hour wheel
Plan view barrel
Inclined view barrel
Ratchet click
Setting lever spring plate
Setting lever and screw
Winding stem
Winding pinion & sliding clutch
Train wheels
Centre wheel
3rd wheel
4th wheel
Canon pinion
Escape wheel, anchor(pallets) and pallet bride
Branding printed on sapphire, underside
Upper side of balance bridge assembly
Underside of balance bridge
Inclined view of bridge side of movement, the frequency of the balance is 18000 vibrations per hour.
Setting mechanism
Beveled sapphire glass
Black lacquered hands
17 jewels in total
All of the jewels are pushed (friction fitted) in the bridges.
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