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The Graham escapement
Weight 5 kg (11 lbs)
The Graham escapement with jewel pallets ensures a constant transmission of energy to the pendulum
a temperature-compensated Invar pendulum with air-pressure compensation was used
Rotalis 30 Size:30 Winders with 48 Manual Spaces The Graham escapementENOUGH SPACE FOR ALL TREASURES THESE TWO ROTALIS MODELS IMPRESS CUSTOMERS WITH THEIR GENEROUS SPACE, FASCINATING APPEARANCE AND IMPRESSIVE TECHNOLOGY The Rotalis 30 is a masterpiece based on the expertise of the clockmakers, precision mechanics and electricians from the clock manufacture, Erwin Sattler. Similar in appearance to two modern flat screens, two 18 mm thick bulletproof glass plates protect the hidden treasures inside. These only become
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