Omega also produced a Decimal bezel for the Speedy as shown in this 1970 example.
This bezel was handy if you were interested in knowing hundredths of a minute..
For example; 15 seconds would be 25 hundredths of a minute, or in the case of this photo, the second hand is stopped at 22 seconds, which equals 37 hundredths of a minute.
Speedy Decimal.jpg
