Swiss made, automatic (bidirectional winding), 28.5 mm diameter, 4Hz (28,800 VPH), 31 jewels, 70-hour power reserve. Hours, minutes, central seconds, instantaneous date at 3 o’clock with secure rapid-setting stop-seconds. Traversing balance bridge. Free sprung balance with variable inertia weights. Parachrom hairspring. Paraflex shock absorbers. Chronenergy escapement. Paramagnetic nickel-phosphorous pallet fork and escape wheel. Superlative chronometer -2/+2 sec/day after casing.

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