Osco 66D
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The Osco 66D is a well equipped movement of german production: It contains a screw balance (or a golden toned ring balance in later issues), which is beared in a Trishock-like shock protection system, a direct driven center second indication and a date display by a date wheel. Only the rocking bar winding mechanism is a tribute to the economical fabrication of this movement.
This movement uses a number of cap jewels on the escapement and escapement wheel (on the dial side).
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Technical data
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