Attitude Indicator Desk Clock Monitor Morning Ascents and Nightly Descents Although it’s actually a functioning quartz clock, it resembles an attitude indicator used in aircraft. So realistic, this Desk Clock even fooled a repairman at a leading manufacturer of cockpit instruments. Features a facsimile (non-operating) adjustment knob, glass face and twin pointers. Requires one AA battery. Measures 3.25" dia. x 3.5"l.