Loading offers from trustable partners...
The central second is the central hand of the dial which divides the minute into 60 units.
The date is a small window on the dial which indicates the day of the month (between 1 and 31).
Watches featuring an « alarm » can be set in advance to ring at a certain moment. These watches are often used to wake you up in the morning.
Watches featuring a « big date » display an oversized window and have two independent date discs.