9 Terms
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Watches
Of or relating to timepieces worn on the wrist or kept in a convenient place, such as a coat pocket.
Industry: Timepieces
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Watches
lap-time memory
Timepieces; Watches
Some sport watches have the ability to store lap times that can later be recalled by the user. A lap-time memory will be found in a quartz watch with digital display.
mainspring
Timepieces; Watches
The mainspring in a movement is the spring that powers the watch functions as it unwinds to release energy.
military time/24-hour time
Timepieces; Watches
Many watches have a subdial, scale or digital function for tracking time in the 24-hour format in addition to the 12-hour format. The 24-hour format is also known as military time.
moon-phase dial
Timepieces; Watches
This is a function that tracks and displays the phases of the lunar month, usually in a subdial. Some watches have a sun-and-moon subdial, which tracks the 24-hour day.
perpetual calendar
Timepieces; Watches
The perpetual calendar automatically resets the day at the end of the month or year, accounting for leap years, to keep a timepiece's calendar accurate.
power reserve
Timepieces; Watches
Power reserve is the amount of energy that a watch has stored in its movement. The average mechanical or automatic watch has a full power reserve of about 36 hours.
