The Omega Speedmaster Grey Side of the Moon Porsche Club of America Limited Edition is another special edition of the Moonwatch
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movement Omega 9300
Movement Omega 9300 | Automatic | Frequency: 28,800 vph (4 Hz) | Jewels: 54 | Two barrels (mounted in series) | Co-axial escapement | Silicon balance-spring | Certified Master Chronometer | Hours, minutes, small seconds, date, column-wheel chronograph | Power-reserve: 60 hours