Davtron Model 811C FAA Approved - M811C Chronometer Six-Digit Display ON ALL 3 Functions

The Davtron M811C is FAA Approved as an advanced time-keeping device equivalent and hence a replacement for the sweep-second-hand clocks of old. The unit is considered a replacement for clocks in Part 23, Class I and II IFR aircraft per advisory circular AC 20-94A.

Dimensions: 4X4X4