这是百达翡丽万年历三问表
外壳是以18K黄金制作, 外壳直径有55毫米的高度，
机芯：手动绕线
三问机械手表的复杂化，分钟中继器铃声三种不同的声音; 低音的时间，四分之一
小时的序列的两个音调和分钟的高音
万年日历显示“永久”的正确日期，与闰年协调长短的月份周期。 它那复杂的机制包括凸轮，跳针弹簧和棘轮，能够区分30至31天的月份，闰年
This Patek Philippe Pocket Watch comes in 18K Yellow Gold Case of diameter 55mm. Features include perpetual calendar, moon phase and minute repeater. Movement : Manual Winding
A repeater is a complication in a mechanical watch that chimes the time on demand by activating a slide-piece. Minute repeaters chime three different sounds; the hours with a low tone, the quarter-hours by a sequence of two tones and the minutes by a high tone
The perpetual calendar shows the right date “perpetually”, coordinating the cycle of long and short months with the leap years. It is a complex mechanism of cams, jumper springs and ratchets that puts a load on the movement. The mechanism distinguishes between months of 30 and 31 days, and leap year.
