A device for precisely measuring the duration of a time...

A magnetic-backed time-indicating device

A miniature atomic frequency standard

A timepiece with am/pm indicating

A watch with rotating conical bands and with removable objects

A wristwatch

A.c.w anti clock wise

Ac driven clock timing device with auxiliary dc backup

Acoustic alarm setting device for a timepiece

Activatable time-temperature indicator system

Activity timer for meditation

Actual operating time indicator

Add-on unit for automatically adjusting a thermostat

Adjusting device for an electronic digital display

Air operated clock

Aircraft time indicator

Aircraft time information system

Alarm clock timer

Alarm device for a horological instrument

Alarm device, especially for alarm clocks or timers