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D.DORNBLÜTH & SOHN
Kalbe i/S.A.

Caliber 99.1

Details of movement

diameter: 37 mm • height: 4.4 mm • 20 rubies • oversized eccentric second display, indirectly driven below the train by means of an intermediate gear, with friction spring and cantilevered second pinion • Geneva stripe finish • power reserve 50 hours (± 5%) • 18,000 semi-oscillations per hour • red gold plated three-quarter plate with yellow gold engraving of manufactory name • retracing ratchet • sunburst finish on the crown wheels • Glucydur screw balance with Nivarox-1-spring • swanneck fine adjustment on the hand-engraved balance cock • screws polished, heat-blued, with beveled edges

Collection 99.1

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