mdg
7239
Quarter-second increments on the dial...
Jun 04, 2022,20:10 PM
...does the second hand 'jump'?
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To match the 28,800 vibrations per hour of the movement?
By: John-E-Mac : June 4th, 2022-21:20
A 28,000 vph movement does 4 full oscillations per second (4Hz) [or 8 semi-oscillations per second]. I've seen chronographs with 5 divisions per second with a 28,800vph movement. Now that doesn't match! -John