Both combinations of hands have the same length for each type of hand. The hour hand extends nearly to the inside end of the hour mark, with a slight gap. The minute hand will extend all the way to between the end of the 1/5 second marks and the second/minute marks. The chronograph second hand tip extends all the way to the 1/5 second marks, the tail should not extend into the registers (hand should end at COMPAX when is at 0).
Early hands: seen up to 2.5 serials
The first set of main hands were silver, with lume, for both the hour and minute, and a blued chrono seconds hand, also with lume. These hands were used on the early Nina “Mk 1” dials.
Later hands: seen from 2.5 serials and on
Later hands were all black with lume, including hour, minute and chrono seconds. These were used exclusively on the later Nina dials.