Powered by the release of a wound spring, mechanical movements never require a battery. Wound 2 ways: Automatic: Automatic mechanical movements have an oscillating weight that winds the spring with the motion of the wearer’s arm. Manual: The springs on manual-wind mechanical movements are wound clockwise by the rotation of the crown.
The dark blue rotating bezel with a gold-tone easy-grip aluminum ring surrounds the black dial and luminous hands and markers
