At first glance, the term complication might seem like a misnomer in the world of watchmaking. After all, don’t we prefer our lives—and our watches—uncomplicated? But in horology, complications are a hallmark of craftsmanship and ingenuity. Far from being a flaw, a complication is a defining feature that enhances a timepiece’s function beyond simply telling the time.
What Is a Watch Complication?
A complication is a bonus capability in a watch that goes beyond basic timekeeping (hours, minutes and seconds). These added functions can range from practical tools—like a date display or stopwatch—to elaborate mechanisms that track lunar cycles or chime on the hour.
Complications are often seen in mechanical and automatic watches, which operate through an intricate system of gears and springs. The more complications a watch has, the more complex—and often more valuable—it becomes.
Common Watch Complications
Date and Day Displays
One of the most familiar complications, a date window shows the current day of the month. Some models go further, offering the day of the week or even the full calendar.

Chronograph
A chronograph is essentially a stopwatch built into a watch. It’s often used to measure elapsed time, with separate sub-dials for seconds, minutes and hours.

GMT/Dual Time Zone
Perfect for travelers, a GMT (Greenwich Mean Time) complication tracks multiple time zones. A fourth hand usually points to a 24-hour scale, letting you monitor home time while abroad.

Moonphase
The moonphase displays the current phase of the moon as seen from Earth. It requires a high level of precision and is often found in more luxurious or dress-style watches.

Tourbillon
French for “whirlwind,” the tourbillon is a mesmerizing complication designed to counteract the effects of gravity on a watch’s accuracy. Though largely a showcase of technical prowess today, it remains one of the most coveted and admired features among collectors.

Minute Repeater
This acoustic complication chimes the time on demand. It’s activated by a slide lever and was originally created before electric lighting—when reading a watch at night wasn’t so simple.
At its best, a watch does more than mark the passing hours—it reflects the passions, pursuits and precision of its wearer. Shop the finest selection of luxury timepieces online at Borsheims.com today.