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| 2416B 24 mm caliber sensitive movement with central second hand. Date calendar of instant action. Automatic movement with a safety device keeping the spring safe from overwindng. Height 6,3 mm. 31 ruby jewels. Shock-resistant balance. Average daily rate: -10…+20 sec. Frequency: 19800 semi-oscillation per hour. Run-tine reserve not less than 31 hrs. Average term of service: 10 years. Coating of bridges and plates: nickel or chrome. Coating of angrenage parts: chemical passivating or gold-cobalt. Coating of screws: nickel, gold-cobalt, chemical bluing. Техническое описание модификаций механизмов Восток |
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