| 摘要 |
<p>It includes a tide indicator formed by a tide disc 16 visible through a hatch in the dial 5 and making one revolution in twenty-four hours and driven in rotation by the hand gear. A lunation hand 15 is also driven by the hand gear, at a rate of one revolution in 29.5 days and cooperates with both the tides disc 16 and with signs 20 to 23 representing the phases of the moon, arranged on the dial 5 around the tide disc 16. <IMAGE></p> |
