What is a power reserve indicator?

All timepieces need the power to function. Batteries power quartz watches, while automatic watches have rotors that support a perpetual mechanism. Battery-powered watches can last for a year or longer, but mechanical and automatic timepieces can last a lifetime with proper care and maintenance.

Mechanical watches can be hand-wound, and it gives the mainspring enough power to make the watch work. It is the same with automatic timepieces, which get energy from human’s natural wrist movements. These movements cause the rotor to work. It is also why automatic watches function continuously, even if it is not sufficiently wounded.

With the help of a power reserve indicator, it has become feasible to predict how much power reserve a watch has.

A power reserve indicator is a useful feature in a watch, especially if it is mechanical. Watchmakers developed this display to eliminate the guesswork of how long a watch will run without winding. Most of the time, it is like a ‘meter gauge’ on the dial,’ which shows how much time is left until the watch uses all its reserved power. It is like the fuel meter in your car that indicates if the gas tank is full or empty.

For Aquinus Watches, the Ruggada Collection features distinct timepieces with a power reserve indicator. The indicator has a small hand (fourth hand) that moves, depending on the watch’s current power load. If the watch is empty, it will point out at ‘E,’ which means it is already time to wind your timepiece.

The Ruggada Collection utilizes the NE57 automatic movement with more than 41 hours of power reserve. If you continuously use the timepiece beyond this timeframe, you can immediately see on the dial’s reserve indicator the ‘signal’ that you now need to wind the watch.