15 topics
Complications
Anything a watch does beyond showing the time is a complication. Some are conveniences, some are feats of engineering, and they move value in very different directions.
Date
The most common complication — the day of the month.
Read →Chronograph
A stopwatch built into the watch.
Read →GMT / Dual Time
Tracks a second (or more) time zone at a glance.
Read →Moonphase
A little window that follows the lunar cycle.
Read →Tachymeter
A bezel scale that converts elapsed time into speed.
Read →Power Reserve Indicator
A fuel gauge for the mainspring.
Read →Perpetual Calendar
Knows the date, month, and leap years — until 2100.
Read →Tourbillon
A rotating cage that averages out gravity's error.
Read →World Time
All 24 time zones readable at once.
Read →Annual Calendar
Knows every month length except February.
Read →Alarm
A mechanical buzzer on your wrist.
Read →Minute Repeater
Chimes the time on demand, to the minute.
Read →Small Seconds
A seconds hand on its own sub-dial.
Read →Jumping Hour
The hour snaps into a window instead of sweeping.
Read →Split-Seconds (Rattrapante)
Times two events at once with stacked seconds hands.
Read →