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This manual-wind movement integrates a perpetual calendar, a minute repeater, and a spherical gyro-tourbillon. It utilizes four gongs and hammers to produce a Westminster chime, featuring a silence-reduction system to eliminate time delays between quarters and minutes. A one-minute constant-force remontoir d’égalité ensures consistent energy delivery to the tourbillon and allows for a jumping minute hand. The perpetual calendar is user-friendly, permitting bidirectional adjustment, and features a pointer-style date that jumps over the tourbillon aperture.